APF Armory Lightweight AR-15 Bolt Carrier Group 5.56x45mm NATO Nickel Boron

Alex Pro Firearms (APF) has been in business since 1976 crafting highly precise components. APF has taken their line of precision AR components and added a Nickel Boron coating to provide increased lubricity and much greater wear resistance.FeaturesShot peened, nickel boron plated, 9310 steel BoltNickel boron plated, SE 8620 steel CarrierShot peened, nickel boron plated, CNC machined ExtractorPrecision ground, Swiss machined Firing pinChrome lined, nickel boron plated, CNC machined Gas KeySwiss machined, nickel boron plated Cam PinHeat treated components