Nickel Boron AR10/LR-308 Bolt Carrier Group- Precision machined complete BCG (Bolt Carrier Group) combines shot peened surfaces with Nickel Boron finish for the best lubricity, function, and endurance. Compatible with DPMS Gen 1 specs. Fits guns chambered for .308, 6.5 Creedmoor, 7.62 NATO, etc. Made to exact compliance with DPMS Gen 1 specs, then taken to the next level with advanced machining and finishing processes:- The bolt is milspec Carpenter 158 steel, shot peened, heat reated, and nickel boron plated with gas rings fitted to Milspec. The carrier is 8620 formula steel, shot peened, heat treated, nickel boron plated, and held to the closest internal tolerances for accuracy and reliable function... Including full auto applications. The cam pin and firing pin are Swiss Screw turned and precision ground to achieve the closest dimensional tolerances and straightness. CNC machining and exact heat treating makes the extractor reliable and extremely wear resistant. And finally the Gas Key... CNC machined to comply exactly with military drawings, it gets heat treated, chrome lined, and is then torqued and staked onto the carrier in compliance with full auto military specifications. - If you are shopping for an accuracy enhancing AR10/LR-308 compatible Bolt Carrier Group, you can't buy better than this one... At ANY Price!
DPMS GEN I COMPATIBLE