Gunsmith Part: Troubleshooting Common AR-15 Misfires and Failures to Feed
The Bolt Carrier Group’s Role Examining the Firing Pin At the heart of the AR-15’s operation lies the bolt carrier group (BCG). This assembly is a complex system responsible for cycling the action, extracting spent casings, and chambering new rounds. Any malfunction within the BCG can lead to a failure to feed, a failure to…