Features CALIBER RATING: .300 RUM MUZZLE ENERGY RATING: 4400 ft lbs BORE DIAMETER: .30 caliber LENGTH: 8.12" (Body) 8.8" (w/Xeno Adapter) DIAMETER: 1.76 inches WEIGHT: 9.9 oz (Body) 12.2 oz (w/Xeno Adapter) MATERIALS: Grade 5 6AI-4V Titanium FINISH: Raw titanium satin bead-blasted black or FDE high temp CerakoteA(R) Nitride adapter and mount USAGE: Bolt-action semi-auto. For ultimate sound reduction and weight savings. MOUNT: Xeno BARREL RESTRICTIONS: 12.5" supersonic (5.56 NATO) 6" subsonic (.300 BLK) FULL AUTO RATED: No