AR15 Low Profile Gas Block .750" Diameter with Quad Picatinny Rails- Aluminum Black

The AR15 low profile quad rail gas block is constructed of anodized aircraft grade aluminum with a matte finish. The low 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. The top rail is lower than the flat top by 0.28″. 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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