Proof Research PR15 223 Wylde 16" 1:8 PXT Carbon Fiber AR-15 Barrel

The Proof Research PR15 is a premium 16" AR-15 barrel chambered in 223 Wylde, a hybrid chamber geometry that safely fires both .223 Remington and 5.56x45mm NATO ammunition while delivering match-grade accuracy. Built around Proof Research's signature carbon fiber-wrapped construction over a stainless steel core, this barrel drops weight versus an all-steel blank while retaining the rigidity and heat dissipation needed for sustained strings of fire. The 1:8 PXT rifling twist stabilizes a wide range of bullet weights for both target and duty use, and the barrel is cut on an intermediate gas-system length for reliable cycling across AR-15 platforms. It is finished with a 1/2x28 threaded muzzle for direct installation of standard AR-15 muzzle devices and compensators.