KAK Industry Bolt Carrier Group 7.62x39mm, Black

The KAK Industry bolt carrier group 7.62x39mm, black, is engineered for optimal performance in AR-15 platforms chambered for the 7.62x39mm cartridge. This bolt carrier group (BCG) is constructed from high-grade steel, ensuring durability and reliability under rigorous conditions. The black finish provides enhanced corrosion resistance and a sleek aesthetic. Precision-machined components ensure seamless cycling and consistent operation. The BCG includes a properly staked gas key, enhancing gas system reliability and reducing the risk of gas leakage. This component is compatible with standard AR-15 upper receivers, making it an ideal choice for custom builds or upgrades.The firing pin is manufactured according to military specifications from 8740 steel, precision ground and chrome-platedOne-piece billet, fully machined, enhanced extractor with phosphate coating for improved reliability and corrosion resistancePhosphate cam pinEjector and extractor retaining pin made from S7 tool steel4130 gas key, chrome-lined and phosphate-coated, precisely staked using our hydraulic staking machine, chrome-lined phosphateKAK carrier key screws feature a T25 drive, are grade 8 and have undergone proper heat treatmentThe M16 auto profile carrier is precision machined from aircraft-grade, bearing-quality 8620 steelIt undergoes proper heat treatment and is ground to exact specificationsThe carrier features a chrome-lined interior and a phosphate finish for enhanced durabilityThe bolt is manufactured from a single-piece of aircraft-grade, bearing-quality 9310 steelIt undergoes proper heat treatment, precision grinding, shot peening and magnetic particle inspection (MPI) and is finished with a phosphate coating