KAK Industry AR-15 Lower Parts Kit Features The KAK Industry Lower Parts Kit is built to mil-spec dimensions giving builders confidence that every part will fit and function correctly in a standard AR-15 lower receiver. The kit includes the fire control group bolt catch magazine release and a complete selection of springs detents and pins needed to fully assemble the lower. A KAK billet trigger guard is included rather than a stamped unit adding durability and a cleaner finished look to the completed rifle. Black oxide springs resist corrosion and wear through repeated cycling helping maintain reliable function over the life of the build. A standard A2 pistol grip rounds out the kit giving the builder a complete ready-to-assemble package rather than a partial kit requiring separate purchases. Paired with one of KAK s buffer assembly kits this parts kit provides everything needed to finish a complete lower receiver from a stripped lower. KAK Industry manufactures these parts entirely in the United States reflecting the company s founding mission to fill a gap in the market for quality affordable American-made AR-15 components. For builders assembling their first AR-15 or simply replacing worn parts this kit offers a complete dependable solution in one box. KAK Industry AR-15 Lower Parts Kit Specifications Manufacturer: KAK Industry Model: Lower Parts Kit Compatible Hosts: AR-15 Color: Black Material: Steel Weight: 0.514 lbs Available At: GrabAGun