WMD Guns AR-15 / M16 7.62x39 Nickel Boron Bolt Carrier Group

Ensure smooth and proper function for your 7.62x39 AR-15 rifle with the WMD Guns® AR-15 / M16 7.62x39 Nickel Boron Bolt Carrier Group. The bolt features case hardened 9310 shot peened and magnetic particle inspected steel construction while the extractor is manufactured, heat-treated, and hardened for unmatched strength and durability. Further, the firing pin is manufactured, heat-treated, hardened, chromed, and certified per government drawings while the gas key is hardened to USGI Specifications and attached using grade 8 hardened fasteners to ensure smooth and proper cycling. Further, the cam pin is manufactured, heat-treated, hardened, and certified per government drawings and the carrier features case hardened 8620 steel construction for lasting dependability. To top it off, the corrosion-resistant Nickel Boron coating helps reduce fouling adherence and protects against chipping, spalling, or flaking.