Yankee Hill Machine Low Profile "Hinged Style" Gas Block

Yankee Hill Machine Low Profile "Hinged Style" Gas BlockThis hinged low profile Yankee Hill Machine Co. 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.Features: Low Profile.750" Bore DiameterClamp Screw MountedWeight: 1.98 Oz