Sons of Liberty Gun Works M4-EXO3 5.56 NATO AR-15 Rifle - 16" - 1x 30rd Magazine

Sons of Liberty Gun Works' EXO3 5.56 NATO rifle is a duty-ready workhorse — forged mil-spec receivers, a Carpenter 158 bolt that's individually proof tested and MPI inspected, the EXO3 M-LOK free-float handguard, and SOLGW's Liberty Fighting Trigger — built to the same standard SOLGW applies to every rifle in their lineup, in a 16-inch configuration ready for range, duty, or home defense.

The Sons of Liberty Gun Works M4-EXO3 5.56 NATO rifle features a 16-inch 4150 CMV barrel with low-profile gas block and 1/2-28 A2 flash hider, EXO3 7-sided M-LOK free-float handguard, SOLGW forged mil-spec 7075-T6 upper and lower receivers, SOLGW Legendary BCG with Carpenter 158 bolt (HPT/SP/MPI/full-auto tested), ambidextrous Liberty Charging Handle, Liberty Fighting Trigger 5.5–6 lb, QD endplate, and B5 furniture. Hard coat anodized finish throughout.

The EXO3 is SOLGW's volume rifle — their workhorse platform built to the same material and quality verification standards as their premium configurations, available at a price point that puts it in patrol vehicles and home defense setups without compromise on the components that matter most for reliability. The Carpenter 158 bolt starts with the correct steel specification and then goes through individual proof testing, shot-peening, magnetic particle inspection, and full-auto firing before it ships — a quality verification sequence that eliminates the material and manufacturing variance that causes bolt failures in less rigorously inspected components. The 4150 CMV barrel with low-profile gas block provides the material toughness of chrome-moly vanadium steel and keeps the handguard profile slimmer than a front-sight-tower-equipped barrel. The EXO3 free-float M-LOK handguard provides 7-sided accessory attachment without the accuracy-degrading barrel contact of standard carbine handguards — free-floating the barrel removes the handguard's influence on the barrel's harmonic vibration pattern, improving shot-to-shot consistency particularly in longer firing strings where handguard temperature would otherwise change the contact load on the barrel. The Liberty Fighting Trigger at 5.5–6 lb with Nickel Teflon coating provides a consistent, durable fire control group that doesn't require trigger replacement on a duty rifle. The QD endplate and B5 furniture complete a package optimized for practical use.

Caliber: 5.56 NATO. Barrel: 16", 4150 CMV, low-profile gas block, 1/2-28 A2 flash hider. BCG: SOLGW Legendary, Carpenter 158 bolt (HPT/SP/MPI/full-auto tested), phosphate coated. Charging handle: Liberty Ambi. Trigger: Liberty Fighting Trigger 5.5–6 lb, Nickel Teflon. Rail: EXO3 7-sided M-LOK. Receivers: forged mil-spec 7075-T6, black hard coat anodized. Buffer: QD endplate. Furniture: B5. Finish: hard coat anodize.

Carpenter 158 bolt individually HPT, shot-peened, MPI inspected, and full-auto fired before shipment — the most comprehensive bolt quality verification sequence in the industry. Free-float EXO3 M-LOK handguard eliminates barrel contact for improved harmonic consistency. Liberty Fighting Trigger Nickel Teflon coated for long service life without maintenance replacement.

The right choice for duty, home defense, and range use — SOLGW's proven 16-inch workhorse with individually verified Carpenter 158 bolt, free-float M-LOK handguard, and full mil-spec forged receiver construction at a price point that puts quality within reach.