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 mounted by the use of two clamping screws and 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.