YHM Low Profile Gas
Block -Set Screws

These gas blocks replace 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.

They are mounted by the use of two set screws. Body is .950 inches long. Manufactured from high quality steel and finished with a mil. spec. phosphate coating. Made in the U.S.A.

This gas block has a bore diameter of .750 inches.