Troys .875 Low Profile Gas Block is made specifically for bull barrel rifles that have a 0.875 gas block seat and Armalite 0.308 heavy barrel and other calibers. Machined from 4140 pre-hardened steel finished with MIL-STD Manganese Phosphate.
- .875 Low Profile Gas Block for bull barrels
- Color: Black
- .875 Low Profile Gas Block for bull barrels
- Color: Black