AR15 High Profile Gas Block .750" Diameter with Picatinny Top and Bottom Rails- Aluminum Black

The AR15 High profile gas block is constructed of anodized aircraft grade aluminum with a matte finish. The High profile gas block replaces the existing A2 front sight. It comes equipped with picatinny rails on top and bottom 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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