Proof Research 100042 AR-Style 6.5 Creedmoor 20 in +2 Length Gas System 1:8 in Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped, Rifle Barrel

Overview

The Proof Research AR-style barrel is designed for 6.5 Creedmoor builds on AR platforms. Measuring 20 inches in length with a rifle +2 length gas system, it features a 1:8-inch twist rate with 4 grooves and a 5/8-24 TPI threaded muzzle. The barrel is constructed from double-stress-relieved 416R stainless steel and wrapped in high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin. This carbon fiber wrap provides improved heat dissipation and reduces weight significantly compared to traditional steel contours of similar profile. It utilizes Proof's Caliber Matched Gas System (CAMGAS) to optimize bore pressure, smooth out the recoil impulse, and enhance overall reliability and extraction on AR-10 type platforms.

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