Precision-machined gas block for bull barrel rifles with .875 gas block seats. 4140 steel with manganese phosphate finish. Roll pin not included.
Troy Industries engineered this gas block specifically for bull barrel rifles that feature a .875 gas block seat, including Armalite .308 heavy barrels and other calibers requiring this specification.
Precision Manufacturing: Machined from 4140 pre-hardened steel for durability and reliability under demanding conditions.
Finish: Military-standard manganese phosphate coating provides excellent corrosion resistance and a professional appearance.
This is a purpose-built component for shooters running bull barrel rifles with the specific .875 gas block seat dimension. The low-profile design keeps your sight line clear while maintaining the structural integrity needed for reliable operation. The manganese phosphate finish will develop character over time while resisting corrosion.
Note: Gas tube roll pin is not included with this block.