Made in the USA, the YHM 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. The two screws take a 9/64" Allen Wrench.
|Model||Low Profile Gas Block|
|Series||Low Profile Slotted Pinch Screw|
Determined at checkout.