AR-STONER AR-15 Bolt Carrier Group 45 ACP Nitride Black

The AR-STONER AR-15 Bolt Carrier Group in 45 ACP is ready to drop into your AR-15 upper receiver build. This universal, ramped, 45 ACP bolt accepts both Glock and Colt style magazines. No matter if you are building a dedicated 45 ACP AR-15 or modifying your current setup this affordable and reliable part is a must have. Note: Upon installation, headspace should be verified by a qualified gunsmith.