Boss Barrels Carbon Fiber 300 BLK AR-15 Barrel - 10.5"

Whether on the range or in the field, Boss Barrels' CARBON SERIES is built to perform. Built from a fully stress relieved, air gauged, 416R stainless blank turned down to a desired profile and reinforced with aerospace grade materials. Specifications: Caliber: 300 BLK Length: 10.5" Material: 416R Stainless Steel Twist Rate: 1/7 Rifling: 5R Gas Block Diameter: .75" Gas Block Length: 1.02" Gas System Length: Pistol Muzzle Thread: 5/8"-24 Crown: Recessed Target Weight: 1 lb 2.5 oz