This gas block replaces your existing front sight to provide a simple, low profile design that can be used to mount a rifle length forearm to a carbine length barrel. It is Hinged to go around the barrel with a pinned and welded muzzle device. The two screws take a 9/64″ Allen Wrench

Specifications

• Hinged to go around the barrel with a pinned and welded muzzle device
• Low Profile
• .750″ Bore Diameter
• Clamp Screw Mounted
• Weight: 1.98oz
• DO NOT TIGHTEN SCREWS TO MORE THAN 40 INCH POUNDS.