This mk9 bolt assembly is made of 8620 steel and has a phosphate finish.Finish: BlackType: Barrel NutModel: Mil-SpecDimensions: 9" LSize: AR-15Material: Aluminum
Since 2002 CMMG has been the leading manufacturer of AR-15 rifles, AR-10 rifles, and trailblazing AR technologies. CMMG offers premium AR-15 and AR-10 rifles, parts, and accessories.Features :Castle...