Chamberings: 5.56 NATO, 10.3”, 12.5”, 14.5”, and 16” 4150 CMV barrels, 1:7 twist, FNC coating. 300 BLK, 9” and 12.5” barrels. Designed for suppressed shooting. In early 2026, includes standard MPW models. MPWA ambi versions and SD integrally suppressed platforms announced but not listed in early 2026. ambidextrous controls, gas-mitigating seals. Full-chrome bolt carrier group, chrome Carpenter 158 bolt. Mid-length gas system, AAC BLK FH 1x16LH muzzle device, two-stage trigger, Magpul MOE SL grip and MOE SL-K stock. For 14.5″ barrel, 12.5″ AAC ARX free-floating handguard. Weight: 6 lbs, 2 oz. In 300 BLK, 12.5″ model has 1:7 twist barrel with 5/8x24 muzzle threads. Weight: 6 lbs.