The Daniel Defense .750 Diameter Clam on Low Profile Gas Block is an innovative low profile gas block that not only weighs less than 2.0 ounces, but clamps tightly to .750 diameter barrels without the need for installing taper pins, roll pins or dimpling the barrel for set screws. The Daniel Defense Low Profile Gas Block fits perfectly under all Daniel Defense rails except te MFR rail, and is compatible with many other aftermarket free float rails. The gas block is constructed from 4150 hardened steel and finished with a Mil-Spec Heavy Phosphate Coating.