Angstadt Arms AR-15 Bolt Carrier Group 5.56 NATO – Black Nitride Finish

The Angstadt Arms AR-15 Bolt Carrier Group delivers reliable cycling and extraction in 5.56 NATO chambered rifles. This BCG replaces worn factory components or serves as a backup carrier group for shooters who maintain multiple uppers. The black nitride treatment provides corrosion resistance and reduces friction for smoother operation and easier cleaning compared to phosphate-coated carriers.

Machined from 8620 steel with a properly staked gas key, this carrier group features black nitride finish on all surfaces for durability and lubricity. Installation is drop-in for standard AR-15 rifles—no fitting or gunsmithing required. Includes bolt, carrier, cam pin, and firing pin.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15 rifles chambered in 5.56 NATO / .223 Remington
• Material: 8620 steel
• Finish: Black nitride
• Installation: Drop-in
• Includes: Bolt, carrier, cam pin, firing pin