Proof Research Carbon Fiber AR-15 Barrel 204 Ruger 20" Rifle .750 Gas Journal

The Proof Research carbon fiber wrapped AR-15 barrel is chambered in 204 Ruger with a 20-inch rifle-length profile and .750 gas journal diameter. Featuring Proof Research's proprietary carbon fiber wrapping over a match-grade steel core, this barrel delivers exceptional stiffness-to-weight ratio for improved accuracy and reduced fatigue. Designed as a direct drop-in for AR-15/PR-15 platform builds, it is ideal for precision shooters and long-range enthusiasts seeking a lightweight, high-performance barrel upgrade.