Shell Tactical

Benelli M4 Magazine Tube - 5 Round

$179.99 USD

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Color Black H2O Flat Dark Earth Uncoated

Built for two owners: SBS owners who want to lighten their build, and anyone who wants a convertible replacement tube to switch between 5 and 7-rounds quickly. Want a permanent full-length 7-round setup instead? See the Benelli M4 7-Round Magazine Tube.

KEY FEATURES & BENEFITS

Dimensionally matched for short-barreled M4 builds
Convertible: run 5+1 with a limiter, or add the 2-Round Extension for 7+1 whenever you want
Precision CNC machined from aircraft-grade titanium and Cerakoted in the USA
Significantly lighter than the OEM steel tube, virtually rust and corrosion-proof
Black, H2O, FDE, or uncoated raw titanium finish
Lifetime warranty

PRODUCT DESCRIPTION

Most M4 owners want more capacity, but SBS builds need the opposite — a magazine tube that matches a shortened barrel. This titanium tube is sized for exactly that, while still giving standard-length M4 owners a lightweight, premium replacement with the flexibility to add capacity later.

Installation requires heat to break the factory thread locker — plan 30–60 minutes and read the full instructions (PDF linked below) before starting.

FULL SPECIFICATIONS & INSTALLATION

Capacity: 5 rounds of 2¾" shells standalone, or 7+1 with the 2-Round Magazine Extension added.

922(r) note: this titanium tube counts as a 922(r) compliant part when installed on a Benelli M4 — it's machined in the USA.

Installation steps: (1) clear and safe the firearm, remove all rounds from the chamber, loading gate, tube, and work area; (2) remove magazine cap, barrel, foregrips, retaining ring, magazine spring, follower, bolt carrier group, and trigger assembly; (3) place the receiver in a padded vise and heat the OEM tube (not the receiver) with a heat gun until the thread locker smokes; (4) using heat-resistant gloves, unscrew and remove the OEM tube; (5) thread on the new tube with 1–2 drops of high-strength all-metal thread locker; (6) reassemble in reverse order. Full PDF instructions are available on the product page.