Proprietary gas-piston operating systems. P1 basic specs: 5.56 NATO chamber, 16″ barrel, 1:7 twist rate. A2 flash hider, Adams Arms standard piston system, carbine length. 6.3 pounds. P2 specs similar to P1 rifle. Also includes Adams Arms case, flip-up iron sights, Rise Armament Rave-140 drop-in fire-control group, Bravo B5 stock, mid-length gas system. 7 pounds. P3 rifles similar to P2 line. Come in 223 Wylde chamber, 16″ barrel, 1:8 twist. Triggertech Diamond drop-in fire-control group, LUTH-AR stock. 6.6 pounds. Starting in 2026, includes parts and rifles from Alexandria Pro-Fab (APF Armory). Select left-hand models available.

Ergonomic free-float rail. 7.5", 11.5", and 16" barrels in 5.56; 8" and 16" in 300 BLK; 12.5" and 16" in 308 Win., and 18" in 6.5 Creedmoor. Discontinued. Add 62% for the 7.5" pistol variant.

Proof Research carbon-fiber-wrapped barrel, jet comp, free-float rail. 16” barrel in 223 Wylde, 12.5” in 300 BLK, 20” in 224 Valkyrie, 17” in 308 Win., and 24” 6.5 Creedmoor. Add 5% for 6.5 Creedmoor. Discontinued.