Sionics Barrel 16″ The SIONICS Barrel is a Chrome Lined high-quality barrel that is made from 41V50 Chrome Moly Vanadium Steel. It has a medium contour, a mid-length gas system, and a .750″ gas seat diameter. The barrel features hand-polished feed ramps and has a 1/8 twist rate. It is also threaded 1/2×28 and is manganese phosphate coated. The barrel is magnetic particle inspected and radiograph inspected. It is pre-dimpled for easy installation of the gas block. This barrel is a great choice for a general purpose carbine. Features: 16” Chambered in 5.56 NATO 41V50 CMV Steel Manganese Phosphate Coated Chrome Lined Medium profile .750″ Gas Seat diameter 1/8 Twist Rate Mid-Length Gas System Magnetic Particle Inspected Weight: 1 Lb. 13oz. Radiograph Inspected Threaded 1/x28 Hand Polished Feed Ramps Pre-Dimpled for easy Gas Block Installation Barrel Specifications Barrel Length 16 Inches Chambering 5.56 NATO Barrel Contour Medium Twist Rate 1/8 Twist Rate Thread Pitch 1/2 x 28 Gas System Mid Length Gas Seat Diameter .750 Barrel Material 41V50 Chrome-Moly Vanadium Steel Outer Coating Manganese Phosphate Coated Inner Coating Chrome Lined Weight 29.4 oz / 833 g
