The Tiger Rock Inc. GBUS-SGY .750 Low Profile Steel Gas Block is engineered for strength and precision, specifically designed for AR .750" barrels. Manufactured from durable 4140 hardened steel, this gas block meets rigorous mil-spec standards for effortless compatibility and reliable performance, all while featuring a sleek Cerakote Sniper Grey finish that enhances durability against corrosion. Mil-Spec dimensions .750 diameter 4140 Hardened Steel construction Includes roll pin, 2 set screws and allen wrench Note: Not designed for bull barrel mounts Fits: AR .750" barrels Made in USA Cerakote Sniper Grey This gas block combines functionality and style, making it a must-have for serious firearm enthusiasts.