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 set screws. Gas port size: 0.125″

• Manufactured from 4140 Steel, finished with a mil. spec. phosphate coating.
• and finished with a mil. spec. phosphate coating.
• Length: 0.95″
• Bore diameter of .750 inches.
• Weight:1.6 Oz.

Made in the U.S.A.