Sons of Liberty Gun Works M4-L89 5.56 11.5" - AR-15 Pistol - 1x 30rd Mag

When compromise isn't in your vocabulary and your 5.56 pistol needs to be built on the same L89 system that Sons of Liberty Gun Works built for professional end users, the M4-L89 in 11.5" delivers a complete pistol package — Liberty 2-stage trigger, SOLGW BCG, Drivelock handguard, and an SB Tactical brace — with a 30-round Gen3 PMAG ready to run from the box.

The Sons of Liberty Gun Works M4-L89 is an AR-15 pistol designed for professional users, serious civilian shooters, and anyone who demands that every component in their compact 5.56 platform is selected for proven performance rather than cost savings.

The L89 Series starts with SOLGW's precision-forged upper and lower receiver set — the same foundation used across their fighting rifle line — then builds outward with the L89 Drivelock Handguard, a 7-sided M-LOK rail system with integral steel QD cups on both sides for sling attachment without separate hardware. Extended steel barrel nuts provide a more rigid handguard-to-receiver lockup than standard barrel nuts, directly benefiting accuracy and accessory mounting stability. The 11.5" SOLGW Liberty Fighting Barrel on a carbine gas system delivers reliable 5.56 NATO function in a pistol-length package, capped with an A2 flash hider that keeps the muzzle blast manageable. The Liberty 2-Stage Trigger at 4.5 lbs provides a crisp, predictable two-stage break — a significant step up from mil-spec single-stage triggers — for faster, more confident shooting. The SOLGW Liberty Charging Handle, ambidextrous safety selector, and SOLGW A5 9-position receiver extension with A5H2 buffer and SOLGW spring round out a system engineered for recoil management. The SB Tactical brace and B5 grip provide an ergonomic, stable shooting platform from the factory.

Caliber: 5.56 NATO. Barrel: 11.5" SOLGW Liberty Fighting Barrel, carbine gas system, A2 flash hider. Handguard: SOLGW L89 Drivelock 10.75", 7-sided M-LOK, integral steel QD cups. Trigger: SOLGW Liberty 2-Stage, 4.5 lbs. BCG: SOLGW. Charging handle: SOLGW Liberty. Receiver extension: SOLGW A5 9-position. Buffer: A5H2. Brace: SB Tactical. Grip: B5. Includes 1x 30-round Gen3 PMAG.

Every component is selected for the professional end user. The L89 Drivelock Handguard's 7-sided M-LOK geometry and integral steel QD cups eliminate the need for aftermarket additions to the handguard for a ready-to-configure duty setup. SOLGW's Liberty Fighting Barrel delivers the accuracy when it matters most.

The definitive choice for shooters who want a complete, professional-grade 5.56 AR-15 pistol built from the same L89 system SOLGW built for those who depend on their equipment — not a budget build with premium aesthetics.

Backed by Sons of Liberty Gun Works' manufacturer warranty. SOLGW is based in San Antonio, Texas, and builds fighting rifles for professional and serious civilian use.