AR15 High Profile Clamp-on Gas Block .750" Diameter with Quad Picatinny Rails- Aluminum Black

The AR15 high profile clamp-on style quad rail gas block is constructed of anodized aircraft grade aluminum with a glossy finish. The high profile gas block replaces the existing A2 front sight. It comes equipped with 4 picatinny rails allowing you to mount accessories such as a front sight or a laser underneath. It sits flush on your quadrail without any gaps. It is compatibe with 5.56/.223 with a .750 diameter barrel. Roll pin & set screws are included. No modification to your barrel is required.

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