Proof Research AR-15 20in Carbon Fiber Barrel 6.5 Grendel 1-8 Twist

The Proof Research Proof Bbl Cf Pr15 6.5gren Di 20 Rlgb .875 carbon fiber AR-15 barrel pairs 416R stainless steel with a carbon fiber contour to deliver up to 64% lighter than traditional steel barrels of similar profile, while maintaining match-grade accuracy for precision shooting. This 20-inch AR-15 barrel features a 6.5 Grendel chamber, 1:8 twist, and 5/8-24 muzzle threads with a 0.875-inch gas block diameter, complemented by M4 feed ramps for reliable cycling. Chrome lining is not present, prioritizing a high-strength, lightweight profile that enhances heat dissipation for cooler, longer-lasting performance under extended strings. Designed to minimize point-of-impact shifts during high-volume fire and reduce harmonic barrel vibration, it supports sustained accuracy in dynamic shooting scenarios. Built to endure demanding field use, the barrel's carbon fiber finish not only contributes to its remarkable durability but also delivers a tactical, low-profile aesthetic suitable for precision AR-15 builds. Whether configuring a dedicated 6.5 Grendel rifle for target work or predator hunting, this Proof Research barrel combines lightweight efficiency, rugged reliability, and top-tier precision to elevate AR-15 performance.