BCM Low Profile Gas Block for AR15, M16, M4, M4A1 for .625 barrels.
Features and Specifications:
- For use on AR-15, M16, M4 and M4A1
- Phosphate finished machine steel
- Barrel ID honed after finish per USGI TDP
- Set screw mounting
BCM Low Profile Gas Block for AR15, M16, M4, M4A1 for .625 barrels.
Features and Specifications: