Features CALIBER RATING: .33XC ENERGY RATING: 6800 ft lbs LENGTH: 9.1" (Body) 9.60" (w/Xemax Adapter) DIAMETER: 1.75 inches WEIGHT: 12.9 oz (Body) 15.4 oz (w/Xemax Adapter) MATERIALS: Grade 5 6A1-4V 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: Xemax Brake/Adapter HUB Compatible BARREL RESTRICTIONS: 18" (.338 Lapua) FULL AUTO RATED: No