Stainless steel tunable low profile gas block is designed to perfectly tune your rifle. Set it and forget it! This gas block is included with all DI ODIN Works barrels. - Technical Specs - Included with all DI ODIN Works barrels. - Fits inside all ODIN Works Forends. - Fits .750 diameter barrels. - Weight: 1.90 oz (includes screws and pin). - Made from 303 Stainless Steel. - Nitride finish. - Includes cross pin set screws steel tuning screws and wrenches. - Set it and forget it!