The CMMG bolt catch assembly is a replacement bolt catch for AR-15 lower receivers. It locks the bolt to the rear on an empty magazine and lets you release it to chamber a round. A good spare for lower builds or to replace a worn or broken catch.
- Part: Bolt catch assembly
- Fits: AR-15
- Finish: Matte
- Color: Black
- Manufacturer part #: 55AFF34
