Upgrade your ar-15's gas block with the tapco gas block.750.Precision-engineered for reliability and performance, this gas block features a sleek black finish that complements any rifle build.Designed to fit barrels with a.750-inch diameter, it ensures optimal gas regulation for smooth cycling.With its low-profile design, it sits snugly beneath handguards, reducing interference and enhancing aesthetics.Plus, the convenient two-screw installation makes mounting quick and hassle-free.Model: Gas BlockMaterial: Steel