Proof Research PR15 6 ARC Barrel, 22", 5/8-24 Threads - 143674

Proof Research PR15 barrel chambered in 6 ARC with 22-inch length and 5/8-24 muzzle threads. Designed for AR-15 platform rifles with 7.5 twist rate optimized for 6 ARC ammunition. Features precision rifling and stress-relieved construction for enhanced accuracy and durability.