Proof Research Stainless Steel PR-15 Barrel 338 ARC 16" Pistol-Length Gas .750 1:8 Twist

The Proof Research PR-15 stainless steel barrel is chambered in 338 ARC with a 16-inch length and pistol-length gas system. Designed for AR-15 platform builds, it features a .750 gas journal diameter, 1:8 twist rate, and 5/8-24 muzzle threading. Proof Research barrels are precision-manufactured to tight tolerances, offering reliable performance and accuracy for AR-style pistol configurations.