JP Enterprises Adjustable Gas Block with A2 Front Sight AR-15, LR-308 Standard Barrel .750" Inside Diameter Stainless Steel Matte

Perfect for a competition build, this A2 front sight bolts onto a barrel, no drilling or pinning required. The gas flow is adjustable via a set screw on the side, allowing the amount of gas to be tuned to any specific ammunition. Great for use with a suppressor, or with any build where over-gassing is a concern. Mounts to any standard .750" diameter barrel. Includes front sight post.