As part of a four stage manufacturing process, all KKM barrels are machined in our 5,000sq.ft shop using the most state of the art multi axis CNC equipment. KKM barrels are made using U.S. manufactured 416 Stainless steel bar stock which is then heat treated and vacuum tempered to 42 to 45 RC. We offer both drop-in and gunsmith fit barrels. All KKM barrels have a lifetime warranty against manufacturing defects.
