Angstadt Arms AR-15 BCG .45 ACP – Black Nitride Finish

The Angstadt Arms AR-15 BCG in .45 ACP is engineered specifically for AR-15 platform pistol caliber carbines chambered in .45 ACP. This bolt carrier group is designed to handle the blowback operation common in pistol-caliber builds, providing reliable cycling with proper buffer and spring combinations. It's a direct replacement for builders and shooters running dedicated .45 ACP uppers who need a purpose-built BCG for this larger pistol cartridge.

Constructed from 8620 steel with a black nitride finish, this BCG offers corrosion resistance and reduced friction for smoother operation and easier cleaning. The nitride treatment penetrates the metal surface rather than coating it, providing long-term durability. Installation is drop-in for compatible .45 ACP upper receivers, though proper headspacing verification and function testing with your specific barrel and buffer system is essential before live fire.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15 platform chambered in .45 ACP
• Material: 8620 Steel
• Finish: Black Nitride
• Installation: Drop-In (headspace verification required)
• Includes: Bolt Carrier Group Assembly