Chambers: 5.56 NATO, 223 Wylde, 300 Blackout. Barrel: 16” 4150V Nitride, 1:7” twist, M4 barrel extension. Mid-length gas system. Has PSA 15” Sabre Lock Up Rail and Sabre Compensator muzzle device. Upper: Forged 7075-T6 A3 AR Mil-Spec upper, hardcoat anodized black and T-marked engraved. Bolt Carrier Group: Father’s of Freedom BCG by Microbest. Lower: Sabre-15 lower with FDE B5 Bravo stock and grip. FDE Cerakote finish. Marked multi-caliber. Comes Standard with Springco Buffer Spring, Battle Arms Development Pivot/Takedown Pins, Hiperfire RBT Trigger, JP Reduced Power Springs, and Anti-Walk Pins. Previously called Sabre Mil-Spec. Introduced 2023. Billet receiver added 2024. Values for the forged receiver model; add 11% for the billet receiver variant. SEE POLITICAL PANIC PRICING.