{"title":"Magazine Parts","description":"","products":[{"product_id":"benelli-m4-wolff-magazine-spring","title":"Benelli M4 Wolff Magazine Spring","description":"\u003ch2\u003eWolff Benelli M4 High-Power Magazine Spring – 7-Round Magazine Tubes\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWolff Benelli M4 Magazine Spring\u003c\/strong\u003e is a high-power, precision-manufactured upgrade designed specifically for \u003cstrong\u003eBenelli M4 shotguns equipped with 7-round magazine tubes\u003c\/strong\u003e. Custom engineered to our specifications, this spring improves feeding reliability while also providing slightly more usable space inside the magazine tube compared to the factory OEM spring.\u003c\/p\u003e\n\u003cp\u003eUnlike the OEM Benelli M4 spring—which performs adequately when new but tends to take a set quickly and lose power—the Wolff spring is intentionally slightly overpowered when new, settling into optimal tension after break-in. This design ensures consistent shell presentation to the loading gate and reduces the risk of failures to feed, especially with \u003cstrong\u003elighter loads and 3″ shells\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 7-round Benelli M4 magazine tubes\u003c\/li\u003e\n\u003cli\u003eImproved reliability over factory OEM springs\u003c\/li\u003e\n\u003cli\u003eSlightly shorter solid length for more internal magazine space\u003c\/li\u003e\n\u003cli\u003eHelps with fitting longer crimped defensive shells\u003c\/li\u003e\n\u003cli\u003eMade in the USA from high-carbon spring steel\u003c\/li\u003e\n\u003cli\u003eClosed and squared ends to prevent follower binding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Wolff Benelli M4 Magazine Spring has a \u003cstrong\u003ecompressed (solid) length of approximately 2.01″\u003c\/strong\u003e, compared to about \u003cstrong\u003e2.11″ for the OEM spring\u003c\/strong\u003e, adding roughly \u003cstrong\u003e1\/10″ of extra room\u003c\/strong\u003e inside the magazine tube. For even more capacity margin, pair this spring with the \u003ca rel=\"noopener\" title=\"Benelli M4 Max Room Follower\" href=\"https:\/\/shelltactical.com\/products\/benelli-m4-follower\" target=\"_blank\"\u003eBenelli M4 “Max Room” Follower\u003c\/a\u003e for an additional ~1\/8″ of space.\u003c\/p\u003e\n\u003ch2\u003eCompatibility Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized for \u003cstrong\u003e7-round magazine tubes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWill also function in \u003cstrong\u003e5-round magazine tubes\u003c\/strong\u003e, though installation may be more difficult due to increased spring power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill work in clones\u003c\/strong\u003e and other 12ga shotgun models that hold between 5 to 7 rounds in the magazine tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eManufacturing \u0026amp; Quality\u003c\/h2\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eWolff Gunsprings\u003c\/strong\u003e, a trusted leader with over \u003cstrong\u003e70 years of exclusive firearm spring experience\u003c\/strong\u003e, these springs use proprietary materials and processes to deliver proven, long-lasting performance. Every spring is \u003cstrong\u003e100% made in America\u003c\/strong\u003e using premium high-carbon steel.\u003c\/p\u003e\n\u003cp\u003eWhen upgrading your Benelli M4 from a 5-round to a 7-round magazine tube, upgrading the magazine spring is \u003cstrong\u003ehighly recommended\u003c\/strong\u003e. If your Benelli M4 is used for home defense or other high-stakes applications, the Wolff Magazine Spring provides an added margin of reliability you can trust.\u003cbr\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Wolff Magazine Spring","offer_id":44885591392546,"sku":"","price":19.99,"currency_code":"USD","in_stock":true},{"title":"Wolff Magazine Springs 4-pack","offer_id":47215026143522,"sku":"","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Wolff_Magazine_Spring_1.jpg?v=1768350566"},{"product_id":"benelli-m4-magazine-extension","title":"Benelli M4 Magazine Extension +2 Round","description":"\u003ch2\u003eBenelli M4 2-Round Magazine Extension – Titanium\u003c\/h2\u003e\n\u003cp\u003eThe Benelli M4 ships from the factory with a false aluminum limiter plugging your magazine tube — blocking two rounds of capacity that are already built into the gun. The Shell Tactical 2-Round Magazine Extension replaces that limiter, bringing your M4 from 5+1 to 7+1 capacity with a direct screws-on installation that requires no gunsmithing, no heat gun, and no permanent modifications to your shotgun.\u003c\/p\u003e\n\u003cp\u003eThis is the simpler path to 7 rounds. Your OEM 5-round tube stays in place. The limiter comes out, the extension screws on, and you're done.\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-7rd\" target=\"_blank\" title=\"Benelli M4 Magazine Tube 7rd\" rel=\"noopener\"\u003eClick Here for full length 7rd Benelli M4 magazine tube.\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch2\u003eTitanium Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe titanium extension is precision CNC machined from aircraft-grade titanium alloy and Cerakoted in the USA. At just 1.87oz (53g), it's lighter than the false aluminum OEM limiter 2.47oz (70g) it replaces — meaning this upgrade actually reduces muzzle weight while adding capacity. Virtually rust and corrosion-proof.\u003c\/p\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 6.5\" (adds 4.5\" to the OEM 5-round tube)\u003c\/li\u003e\n\u003cli\u003eTitanium weight: 1.87 oz (53g)\u003c\/li\u003e\n\u003cli\u003eCapacity: 7 rounds of 2¾\" shells \/ 6 rounds of 3\" shells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eColors:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlack: custom dark gray Cerakote — can be darkened further with a light layer of gun oil\u003c\/li\u003e\n\u003cli\u003eH2O: custom titanium-colored Cerakote to closely match the Benelli M4 H2O \/ Titanium Cerakote finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation:\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eClear and safe the firearm. Field strip your M4.\u003c\/li\u003e\n\u003cli\u003eUsing \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-snap-ring-pliers\" target=\"_blank\" title=\"Benelli M4 Snap Ring Pliers\" rel=\"noopener\"\u003esnap ring pliers\u003c\/a\u003e, remove the spring retaining ring from the OEM limiter (caution — it's under spring tension).\u003c\/li\u003e\n\u003cli\u003eTransfer the spring retaining ring into the new extension.\u003c\/li\u003e\n\u003cli\u003eInsert the spring and thread on the extension.\u003c\/li\u003e\n\u003cli\u003eReassemble your M4.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRecommended upgrade: The \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-wolff-magazine-spring\" title=\"Benelli M4 Wolff Magazine Spring\"\u003eWolff Magazine Spring\u003c\/a\u003e is strongly recommended when running extended capacity. The OEM Spring is adequate when new but tends to take a set with use, leading to cycling issues. The Wolff Spring has increased power and has a shorter solid length — the better choice for any extended tube setup.\u003c\/p\u003e\n\u003ch3\u003e\u003ca rel=\"noopener\" title=\"Benelli M4 Max Room Products\" href=\"https:\/\/shelltactical.com\/blogs\/news\/benelli-m4-wont-fit-7-rounds-in-a-7-round-magazine-tube\" target=\"_blank\"\u003eCan't fit 7 rounds? Click Here.\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch2\u003eClone compatibility (based on customer feedback — not guaranteed):\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMAC 1014 – YES (sometimes; the 7-round tube is more reliable on this platform)\u003c\/li\u003e\n\u003cli\u003eBlack Aces S4 Pro – YES\u003c\/li\u003e\n\u003cli\u003eAska M4 – YES\u003c\/li\u003e\n\u003cli\u003eSDS Tac12 – YES\u003c\/li\u003e\n\u003cli\u003eSulun Tac12 – YES\u003c\/li\u003e\n\u003cli\u003ePanzer M4 – NO\u003c\/li\u003e\n\u003cli\u003eSDS S4 – NO\u003c\/li\u003e\n\u003cli\u003eGforce Arms M4 – NO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure whether to go with the 2-round extension or the full 7-round magazine tube replacement? If you want the simpler install and want to keep your OEM tube, this is the right choice. If you want the lightest possible setup, the cleanest look, or 922r compliance from this part, see the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-7rd\" title=\"Benelli M4 Magazine Tube 7rd\" rel=\"noopener\" target=\"_blank\"\u003eBenelli M4 Magazine Tube - 7rd\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: No magazine extensions over 5 rounds ship to NJ or MA.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Black","offer_id":51503983558946,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"H2O","offer_id":51503983591714,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"FDE","offer_id":51503983624482,"sku":null,"price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/MAC_1014_Magazine_Extension.jpg?v=1776894774"},{"product_id":"benelli-m4-follower","title":"Benelli M4 Follower","description":"\u003ch2\u003eBenelli M4 Follower – Standard \u0026amp; Max Room Versions\u003c\/h2\u003e\n\u003cp\u003eUpgrade your Benelli M4 with a CNC-machined follower engineered for smooth feeding, durability, and 922(r) compliance. Available in two versions—the Benelli M4 Follower (standard) and the Benelli M4 Follower – Max Room—each model delivers enhanced reliability while preserving full compatibility with the factory platform and most M4 clones.\u003c\/p\u003e\n\u003ch2\u003eBenelli M4 Follower (Standard Version)\u003c\/h2\u003e\n\u003cp\u003eA precision-made replacement for the OEM follower, designed to replicate feeding consistency and provide an immediate tactile indication when the magazine tube is empty.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCounts as a 922(r) compliant part\u003c\/li\u003e\n\u003cli\u003eTactile empty-tube indicator via “USA” engraving on the follower face\u003c\/li\u003e\n\u003cli\u003eSmoother cycling due to a flat-face design\u003c\/li\u003e\n\u003cli\u003e16% lighter than OEM for improved responsiveness\u003c\/li\u003e\n\u003cli\u003eReinforced bezel for added durability\u003c\/li\u003e\n\u003cli\u003eDrop-in fit for the Benelli M4 and most clones\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 0.905\"\u003c\/li\u003e\n\u003cli\u003eLength: 1.02\"\u003c\/li\u003e\n\u003cli\u003eWeight: 0.24 oz (6.9 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBenelli M4 Follower – Max Room Version\u003c\/h2\u003e\n\u003cp\u003eThis unique design is for shooters who want to maximize internal magazine tube capacity—especially when using longer, roll crimped 2¾\" shells. \u003cbr\u003e2¾\" is the length of the shell when its uncrimped – unfired rounds vary in length. \u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCreates about 3\/16\" of extra internal space compared to OEM\u003c\/li\u003e\n\u003cli\u003eIncreases the chance of fitting 7 rounds of longer 2¾\" ammunition\u003c\/li\u003e\n\u003cli\u003e“USA” engraving for empty-tube confirmation\u003c\/li\u003e\n\u003cli\u003eFlat-face design for smoother feeding\u003c\/li\u003e\n\u003cli\u003eCounts as a 922(r) compliant part\u003c\/li\u003e\n\u003cli\u003eCompatible with most M4 clones\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 0.905\"\u003c\/li\u003e\n\u003cli\u003eLength: 0.79\"\u003c\/li\u003e\n\u003cli\u003eWeight: 0.16 oz (4.6 g)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePremium Manufacturing\u003c\/h2\u003e\n\u003cp\u003eBoth follower versions are CNC precision machined in the USA from 6061-T6 aluminum. Each follower receives a durable anodized finish (roughly three times harder than aluminum) for long service life. The “USA” face engraving confirms an empty magazine tube during reloads.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose These Benelli M4 Followers?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized for reliability and smooth cycling\u003c\/li\u003e\n\u003cli\u003eReinforced, weight-optimized design compared to OEM\u003c\/li\u003e\n\u003cli\u003eEnhanced durability through hard anodizing\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple colors\u003c\/li\u003e\n\u003cli\u003eProvides a low-cost method for improving 922(r) compliance\u003c\/li\u003e\n\u003cli\u003eCompatible with factory and aftermarket magazine tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese followers offer a high-performance, American-made upgrade that improves function and durability in any Benelli M4 setup. Choose the standard follower for OEM-like geometry or select the Max Room version to give your shotgun the best chance of fitting a full 7-round load with modern 2¾\" ammunition.\u003cbr\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Max Room \/ Red","offer_id":50347399545122,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true},{"title":"Max Room \/ Blue","offer_id":50347399577890,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true},{"title":"Max Room \/ H2O (NP3®)","offer_id":50347399610658,"sku":null,"price":29.99,"currency_code":"USD","in_stock":true},{"title":"Max Room \/ Green","offer_id":50347399643426,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"Max Room \/ Black","offer_id":50347399676194,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"Max Room \/ Gray","offer_id":50347399708962,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"Max Room \/ Orange","offer_id":50347399741730,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"Max Room \/ Gold","offer_id":50347399774498,"sku":null,"price":24.99,"currency_code":"USD","in_stock":false},{"title":"Standard \/ Red","offer_id":49513164407074,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Blue","offer_id":49593698877730,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ H2O (NP3®)","offer_id":50347316511010,"sku":null,"price":24.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Green","offer_id":49593698910498,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Black","offer_id":49593698943266,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Gray","offer_id":49593698976034,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Orange","offer_id":49593699008802,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Gold","offer_id":49593699041570,"sku":null,"price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Followers.jpg?v=1742414898"},{"product_id":"benelli-m4-magazine-cap","title":"Benelli M4 Magazine Cap","description":"\u003ch2\u003eBenelli M4 Magazine Cap – Titanium Lightweight Upgrade\u003c\/h2\u003e\n\u003cp\u003eEnhance your Benelli M4 or M1014 with a \u003cstrong\u003eprecision-machined titanium magazine cap engineered to minimize weight and maximize usable space in the magazine tube\u003c\/strong\u003e. This mag cap delivers functional performance with a distinctive, purpose-driven aesthetic.\u003c\/p\u003e\n\u003cp\u003eMachined from high-strength \u003cstrong\u003e6AL-4V titanium\u003c\/strong\u003e, it weighs just 0.99oz (28.4g), compared to the OEM polymer cap at 1.31oz (36.9g), offering\u003cstrong\u003e improved durability\u003c\/strong\u003e with reduced overall mass. When installed without the factory magazine spring retaining ring, the design\u003cstrong\u003e adds 0.547 inches of additional internal space\u003c\/strong\u003e inside the magazine tube compared to the OEM magazine cap—valuable for defensive rounds that have longer rolled crimps when fitting 7-rounds. \u003c\/p\u003e\n\u003cp\u003eThe profile is inspired by a blend of the \u003cstrong\u003eClassic OEM Benelli M4\u003c\/strong\u003e magazine cap and the \u003cstrong\u003eiconic rifled grooves of a 12-gauge rifled slug\u003c\/strong\u003e, resulting in a clean, aggressive look that complements both tactical and traditional builds.\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrecision \u003cstrong\u003eCNC-machined\u003c\/strong\u003e 6AL-4V titanium construction\u003c\/li\u003e\n\u003cli\u003e0.99oz (28.4g) \u003cstrong\u003elightweight design\u003c\/strong\u003e (lighter than OEM at 1.31oz [36.9g])\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdds .547\" of magazine tube space\u003c\/strong\u003e when used without the spring retaining ring\u003c\/li\u003e\n\u003cli\u003eDesigned to maximize internal capacity and minimize weight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Benelli M4 \/ M1014\u003c\/strong\u003e platforms\u003c\/li\u003e\n\u003cli\u003eAlso compatible with some Benelli M4 Clones. Not the Panzer M4.\u003c\/li\u003e\n\u003cli\u003eAvailable in Black, H2O, Midnight Bronze, and FDE Cerakote finishes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for tactical, duty, or competition setups\u003c\/strong\u003e, this Benelli M4 titanium magazine cap combines aerospace-grade materials, functional capacity enhancement, and refined styling into one performance-focused upgrade.\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Black","offer_id":51256451105058,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"H2O","offer_id":51256451137826,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"Flat Dark Earth","offer_id":51256451170594,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"Midnight Bronze","offer_id":51256451203362,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Magazine_Cap_Titanium_Colors.jpg?v=1772826918"},{"product_id":"benelli-m4-magazine-tube-7rd","title":"Benelli M4 Magazine Tube - 7 Round","description":"\u003ch2\u003eBenelli M4 7-Round Magazine Tube – Titanium \u0026amp; Steel\u003c\/h2\u003e\n\u003cp\u003eThe Shell Tactical Benelli M4 7-Round Magazine Tube is a full replacement for both the OEM 5-round tube and the 2-round limiter — removing them entirely and replacing the whole assembly with a single, full-length tube. The result is 7+1 capacity, a cleaner profile, and depending on material, a significant reduction in muzzle weight.\u003c\/p\u003e\n\u003cp\u003eThis is the complete solution. Where the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" title=\"Benelli M4 Magazine Extension\" rel=\"noopener\" target=\"_blank\"\u003e2-round extension\u003c\/a\u003e screws onto your existing tube, this tube replaces everything from the receiver forward. It's a more involved installation, but the end product is more polished, lighter (in titanium), and the approach preferred by serious builders.\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" title=\"Benelli M4 Magazine Extension\"\u003eClick Here for the +2 Magazine Extension\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch2\u003eTitanium or steel — which is right for you:\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003etitanium tube\u003c\/strong\u003e is precision CNC machined from aircraft-grade titanium alloy and Cerakoted in the USA. At 4.9 oz (139g), it reduces muzzle weight by 5.3 oz (151g) compared to the OEM 5-round tube and limiter combined — nearly half the weight of the steel version. Virtually rust and corrosion-proof. This is the choice for shooters who want the lightest, best-handling M4 possible. It counts as a 922(r) compliant part, but does not have an engraving like the steel tube has.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003esteel tube\u003c\/strong\u003e is machined from hardened chromoly steel, CNC machined and Cerakoted in the USA from domestic steel. Engraved \"MADE IN USA\" in large letters. At 9.0 oz (256g), it still reduces weight by 1.2 oz (33g) over the OEM assembly. Counts as a 922r compliance part. The right choice if you want domestic steel construction or need a 922r part at a lower price point than titanium.\u003c\/p\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 18.25\"\u003c\/li\u003e\n\u003cli\u003eTitanium weight: 4.9 oz (139g) — saves 5.3 oz vs. OEM tube + limiter\u003c\/li\u003e\n\u003cli\u003eSteel weight: 9.0 oz (256g) — saves 1.2 oz vs. OEM tube + limiter\u003c\/li\u003e\n\u003cli\u003eCapacity: 7 rounds of 2¾\" shells \/ 6 rounds of 3\" shells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eColors:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlack on Titanium tubes: Custom dark gray Cerakote that darkens with gun oil for a custom match.\u003c\/li\u003e\n\u003cli\u003eBlack on Steel tubes: Matte black oxide that closely matches the Parkerized barrel\u003c\/li\u003e\n\u003cli\u003eH2O: custom titanium-colored Cerakote to closely match the Benelli M4 H2O \/ Titanium Cerakote finish\u003c\/li\u003e\n\u003cli\u003eFDE: A flat dark earth cerakote to match OEM FDE Benelli M4s.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Magazine_Tube_Installation_Instructions.pdf?v=1703879258?attachment=1\" title=\"Benelli M4 Magazine Tube installation\" rel=\"noopener\" target=\"_blank\"\u003ePDF instructions\u003c\/a\u003e):\u003c\/h2\u003e\n\u003cp\u003eThis installation requires heat to break the factory thread locker on the OEM tube. Plan 30–60 minutes and read through the full process before starting.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eClear and safe the firearm. Remove all rounds from the chamber, loading gate, tube, and work area.\u003c\/li\u003e\n\u003cli\u003eRemove: magazine cap, barrel, foregrips, retaining ring, magazine spring, follower, bolt carrier group, and trigger assembly.\u003c\/li\u003e\n\u003cli\u003ePlace the receiver in a padded vise. Using a heat gun, heat the OEM magazine tube until the thread locker begins to smoke. Heat the tube, not the receiver.\u003c\/li\u003e\n\u003cli\u003eUsing heat-resistant gloves, unscrew and remove the OEM tube.\u003c\/li\u003e\n\u003cli\u003eThread on the new 7-round tube and apply 1–2 drops of high-strength all-metal thread locker.\u003c\/li\u003e\n\u003cli\u003eReassemble in reverse order.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eRecommended upgrade: The \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-wolff-magazine-spring\" title=\"Benelli M4 Wolff Magazine Spring\"\u003eWolff Magazine Spring\u003c\/a\u003e is strongly recommended when running extended capacity. The OEM Spring is adequate when new but tends to take a set with use, leading to cycling issues. The Wolff Spring has increased power and has a shorter solid length — the better choice for any extended tube setup.\u003c\/p\u003e\n\u003ch3\u003e\u003ca href=\"https:\/\/shelltactical.com\/blogs\/news\/benelli-m4-wont-fit-7-rounds-in-a-7-round-magazine-tube\" title=\"Benelli M4 Max Room Parts\" rel=\"noopener\" target=\"_blank\"\u003eCan't fit 7 rounds in a 7-round tube? Click Here\u003c\/a\u003e\u003c\/h3\u003e\n\u003ch2\u003eClone compatibility (based on customer feedback — not guaranteed)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMAC 1014 – YES\u003c\/li\u003e\n\u003cli\u003ePanzer M4 – NO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure whether to go with the full tube or the 2-round extension? If you want the simpler, no-heat-gun install and are keeping your OEM 5 round tube, see the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" title=\"Benelli M4 Magazine Extension\" rel=\"noopener\" target=\"_blank\"\u003eBenelli M4 2-Round Magazine Extension\u003c\/a\u003e. If you want the cleanest build, maximum weight savings, or a full tube replacement, this is the right product.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: No magazine tubes over 5 rounds ship to NJ or MA.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Titanium \/ Black","offer_id":51504048472354,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ H2O","offer_id":51504048505122,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ Flat Dark Earth","offer_id":51504048537890,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"Titanium \/ Uncoated","offer_id":51504048570658,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"Steel \/ Black","offer_id":51504048603426,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"Steel \/ H2O","offer_id":51504048636194,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"Steel \/ Flat Dark Earth","offer_id":51504048668962,"sku":null,"price":149.99,"currency_code":"USD","in_stock":false},{"title":"Steel \/ Uncoated","offer_id":51504048701730,"sku":null,"price":149.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Magazine_Tube_1.jpg?v=1779997214"},{"product_id":"benelli-m4-magazine-tube-5-round","title":"Benelli M4 Magazine Tube - 5 Round","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eBenelli M4 5-Round Magazine Tube – Titanium\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eMost Benelli M4 owners are looking to add capacity. The 5-round tube exists for the opposite situation — and it serves two specific buyers well.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe first is the SBS owner. Short-barreled Benelli M4 builds require a shorter magazine tube to match the shortened barrel profile. The OEM tube doesn't fit, and a full-length 7-round tube overhangs. The Shell Tactical 5-round titanium tube is dimensionally matched to work with SBS configurations where tube length matters.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe second is the standard M4 owner who wants a lightweight, premium replacement for their OEM tube — without committing to a single capacity. Unlike the 7-round tube, the 5-round tube is convertible: run it at 5+1 with a limiter installed, or thread on a \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" title=\"Benelli M4 Magazine Extension\" rel=\"noopener\" target=\"_blank\"\u003e2-round magazine extension\u003c\/a\u003e to reach 7+1 whenever you want. One tube, two configurations, no heat gun required to switch between them.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eIf you're looking to permanently replace your OEM tube with a full-length 7-round setup, see the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-7rd\" target=\"_blank\" title=\"Benelli M4 Magazine Tube 7 round\" rel=\"noopener\"\u003eBenelli M4 7-Round Magazine Tube\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhy titanium:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Shell Tactical 5-round tube is precision CNC machined from aircraft-grade titanium alloy and Cerakoted in the USA. Titanium is significantly lighter than the OEM steel tube it replaces, virtually rust and corrosion-proof, and stronger than steel at equivalent weight. For SBS builds where balance and weight are critical, or for any owner who wants the best possible replacement tube, titanium is the right material.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe convertible advantage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe 5-round tube is the most flexible magazine tube option for a standard M4. Your options with this tube installed:\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e5+1 capacity\u003c\/strong\u003e — install a mag limiter and run it at the factory configuration. Useful for range days, training, or compliance requirements.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e7+1 capacity\u003c\/strong\u003e — thread on the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" target=\"_blank\" title=\"Benelli M4 Magazine Extension\" rel=\"noopener\"\u003eBenelli M4 2-Round Magazine Extension\u003c\/a\u003e and remove the limiter. No tools, no heat gun, no permanent modifications. Switch back whenever needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis flexibility is not available with the 7-round tube, which is a fixed full-length replacement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCapacity: 5 rounds of 2¾\" shells (7+1 with 2-round extension added)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMaterial: aircraft-grade titanium alloy, Cerakoted in the USA\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible with: Original Benelli M4 \/ M1014 and SBS configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eColors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBlack: custom dark gray Cerakote — can be deepened with a light coat of gun oil\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eH2O: custom titanium-colored Cerakote to closely match the Benelli M4 H2O \/ Titanium Cerakote finish\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFDE: flat dark earth Cerakote to match OEM FDE Benelli M4s\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eUncoated: raw titanium finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e922r compliance:\u003c\/strong\u003e The titanium tube counts as a 922r compliant part when installed on a Benelli M4. It is machined in the USA from imported titanium alloy. Confirm with your gunsmith if documentation is required for your specific build.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Magazine_Tube_Installation_Instructions.pdf?v=1703879258?attachment=1\" target=\"_blank\" title=\"Benelli M4 Magazine installation instructions\" rel=\"noopener\"\u003ePDF instructions\u003c\/a\u003e):\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis installation requires heat to break the factory thread locker on the OEM tube. Plan 30–60 minutes and read the full process before starting.\u003c\/p\u003e\n\u003col class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eClear and safe the firearm. Remove all rounds from the chamber, loading gate, tube, and work area.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRemove: magazine cap, barrel, foregrips, retaining ring, magazine spring, follower, bolt carrier group, and trigger assembly.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003ePlace the receiver in a padded vise. Using a heat gun, heat the OEM magazine tube until the thread locker begins to smoke. Heat the tube, not the receiver.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eUsing heat-resistant gloves, unscrew and remove the OEM tube.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eThread on the new tube and apply 1–2 drops of high-strength all-metal thread locker.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eReassemble in reverse order.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eClone compatibility\u003c\/strong\u003e (based on customer feedback — not guaranteed):\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eNo feedback yet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNot sure which tube is right for your build?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003ePermanently replacing OEM tube for full 7-round capacity → \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-7rd\" target=\"_blank\" title=\"Benelli M4 Magazine Tube 7 round\" rel=\"noopener\"\u003eBenelli M4 7-Round Magazine Tube\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAdding capacity without replacing the OEM tube → \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-extension\" target=\"_blank\" title=\"Benelli M4 Magazine Extension\" rel=\"noopener\"\u003eBenelli M4 2-Round Magazine Extension\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSBS build, restricted state, or wanting a convertible 5-to-7 round setup → you're in the right place\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eNote: No magazine tubes over 5 rounds ship to NJ or MA. Residents of NJ and MA: this is the correct tube for your state — run it with a limiter at legal capacity.\u003c\/em\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"Black","offer_id":51504029532450,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"H2O","offer_id":51504029565218,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"Flat Dark Earth","offer_id":51504029597986,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"Uncoated","offer_id":51504029630754,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_5rd_Magazine_Tubes.jpg?v=1780002391"},{"product_id":"benelli-m4-extended-magazine-cap-1-or-3","title":"Benelli M4 Extended Magazine Cap +1 or +3","description":"\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBenelli M4 Extended Magazine Cap – Titanium | +1 or +3 Capacity\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Benelli M4 ships from the factory limited to 7 rounds in the tube on a standard build — or 5 rounds on an SBS. The Shell Tactical Magazine Cap Extension pushes past that ceiling without replacing your tube, modifying your receiver, or requiring a heat gun. It replaces the OEM magazine cap with a longer titanium cap that extends past the muzzle, adding physical tube length and capacity at the end of your existing setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eTwo versions are available. The \u003cstrong\u003e+1 cap\u003c\/strong\u003e brings a standard M4 to 8+1 and an SBS to 6+1. The \u003cstrong\u003e+3 cap\u003c\/strong\u003e brings a standard M4 to 10+1 and an SBS to 8+1 — the longest tube-fed capacity available on the Benelli M4 platform without permanent modifications to the receiver or tube.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis is a Shell Tactical original, precision CNC machined from aircraft-grade titanium alloy and Cerakoted in the USA.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWho this is for:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Magazine Cap Extension is the right product for two situations. The first is the standard M4 owner who has already maxed out their 7-round tube and wants to push capacity further — competition shooters, home defense builds, or anyone running the gun hard who wants every round available. The second is the SBS owner who needs added capacity within the constraints of a shortened platform, where a full-length 7-round tube isn't an option.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e+1 vs. +3 — which is right for you:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe \u003cstrong\u003e+1 version\u003c\/strong\u003e adds one round of capacity with a modest extension past the muzzle. More compact, less visual profile change, still a meaningful upgrade.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe \u003cstrong\u003e+3 version\u003c\/strong\u003e extends further past the muzzle and adds three rounds of capacity. The longer extension is the right choice for shooters prioritizing maximum capacity over a compact profile — competition use, HD builds, or SBS owners who want to maximize rounds on a shortened platform.\u003c\/p\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003e+1 Cap\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003e+3 Cap\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eStandard M4 (7rd tube)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e8 rounds\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e10 rounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSBS (5rd tube)\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e6 rounds\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e8 rounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhy titanium:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePrecision CNC machined from aircraft-grade titanium alloy and Cerakoted in the USA. Titanium is lighter than steel, stronger than aluminum, and virtually rust and corrosion-proof. Adding capacity at the muzzle end naturally shifts balance forward — using titanium rather than steel keeps that weight penalty as low as possible.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMaterial: Aircraft-grade titanium alloy\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFinish: Cerakoted\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVersions: +1 (8+1 on standard M4 \/ 6+1 on SBS) and +3 (10+1 on standard M4 \/ 8+1 on SBS)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eReplaces the OEM magazine cap — no permanent modifications required\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible with: Original Benelli M4 \/ M1014 with 7-round tube, and SBS configurations with 5-round tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eColors:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBlack: custom dark gray Cerakote — can be deepened with a light coat of gun oil\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eH2O: custom titanium-colored Cerakote to closely match the Benelli M4 H2O \/ Titanium Cerakote finish\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFDE: flat dark earth Cerakote to match OEM FDE Benelli M4s\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRemove the existing magazine cap and thread on the Shell Tactical Magazine Cap Extension. No tools, no heat gun, no gunsmithing required.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cb\u003eSprings:\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe +1 tube includes an 8-round spring, and the +3 tube comes with a 10-round spring.\u003c\/p\u003e\n\u003ch2 class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBuilding maximum capacity from scratch?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Magazine Cap Extension pairs with the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-7rd\" title=\"Benelli M4 magazine Tube\" rel=\"noopener\" target=\"_blank\"\u003eBenelli M4 7-Round Magazine Tube\u003c\/a\u003e\u003ca href=\"#\" class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\"\u003e\u003c\/a\u003e for a standard M4 build, or the \u003ca href=\"https:\/\/shelltactical.com\/products\/benelli-m4-magazine-tube-5-round\" title=\"Benelli M4 Magazine Tube 5 Round\" rel=\"noopener\" target=\"_blank\"\u003eBenelli M4 5-Round Magazine Tube\u003c\/a\u003e for an SBS build.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eNote: No products that increase capacity over 5 rounds ship to NJ or MA.\u003c\/em\u003e\u003c\/p\u003e","brand":"Shell Tactical","offers":[{"title":"+1 Extension \u0026 8rd Spring \/ Black","offer_id":51505909629218,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"+1 Extension \u0026 8rd Spring \/ H2O","offer_id":51505911103778,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"+1 Extension \u0026 8rd Spring \/ FDE","offer_id":51505911136546,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"+3 Extension \u0026 10rd Spring \/ Black","offer_id":51505909661986,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"+3 Extension \u0026 10rd Spring \/ H2O","offer_id":51505911169314,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true},{"title":"+3 Extension \u0026 10rd Spring \/ FDE","offer_id":51505911202082,"sku":null,"price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/3827\/8946\/files\/Benelli_M4_Extended_Magazine_Caps.jpg?v=1780002723"}],"url":"https:\/\/shelltactical.com\/collections\/magazine.oembed","provider":"Shell Tactical","version":"1.0","type":"link"}