The UTG Pro Deluxe Quad-Rail High Profile Gas Block (MTU-012H4) replaces the original front sight on any AR15 with a low profile railed gas block. This provides a mounting point for a detachable front sight, as well as a light or laser. This Made in the USA gas block is ideal for use with optics on any AR15. UTG has equipped this gas block with an additional locking set screw for ultimate stability.
The Rail Height Railed Gas Block sits even with the top rail on an AR15, and is designed for use with rail height height iron sights.
UTG Pro M4 RIS Height Quad Rail Gas Block Features:
-Made in USA
-Aircraft Aluminum Construction
-Includes Gas Tube Pin for installation
-Fits 0.75 inch barrel (Milspec)
-Includes Locking Set Screw
-Flush with M4 Top Rail