The Bravo Company Gas Block is a black .625 ID gas block for the AR15, M16, M4, M4A1. Get the low profile gas block for your rifle and go for the BCM-LGB-625.
- Low Profile Gas Block for AR15, M16, M4, M4A1; Fits under most handguards
- Machined from steel; Tough
- Phosphate finish; protected to last
- .625 ID; Fits only .625 barrels
- Manufactured within very tight Mil-Spec tolerances on all ID's; Precise quality
- Barrel ID honed after finish per USGI TDP; Smooth