9MM Bolt Carrier Group. Perfect bolt carrier group for your AR-9 build. Wether you are using your AR-9 upper or AR-15 upper this 9MM BCG will never dissapoint you when you are shooting.
- 9mm Bolt
- Compatible with both 9mm Colt and Glock Magazines (Works with Aftermarket Glock Mags as well)
- Includes Firing Pin
- Material 8620 Steel
- Phosphate Coating