LBE Unlimited 556 Bolt Carrier Group, Nickel Boron Coated M16BCG-NIB

Finish: Nickel BoronCaliber: 5.56x45mm NATO, .22 Nosler, .300 AAC Blackout, .223 Remington RF 223/5.56/300AAC/22Nosler M16 NiB Bolt Carrier Group. Nickle Boron.

Phosphated 8620 Steel Carrier - M16 StyleCarpenter 158 Bolt (Extractor and Bolt Gas Rings Included)Chrome Lined Carrier InteriorChrome Lined Gas KeyStaked Gas Key ScrewsMade in USA

Precise ManufacturingLong Term ReliabilityDurable Construction High quality components and precise manufacturing make Rise Armament parts ideal for maintaining and upgrading firearms. The...

Machined from 8620 Tool Steel (Carrier) and 158 Carpenter Steel (Bolt)Shrouded firing pinNickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)Forged Mil-Spec gas key attached with Grade 8...

5.56/.223 Right-Handed Bolt Assembly8620 Steel ConstructionExtremely Durable Nickel Boron CoatingM16 Carrier with a Shrouded Firing PinProper Mil-Spec Staking of the Gas KeyIncluded Parts: Bolt...