Proof Research PR15 22 ARC 16" Barrel, Gas Length - PROOF 143322

Proof Research AR-15 barrel chambered in 22 ARC with a 16" length and 1:7 twist rate, designed for rifle-length gas systems. Features a .750" gas journal, .096" port size, and 5/8-24 muzzle threading for compatibility with standard suppressors and muzzle devices. This carbon fiber-wrapped barrel weighs 1 lb 12 oz and is designed for direct installation into compatible AR-15 upper receivers.