ZEV Technologies Forged AR-15 Lower Receiver comes stripped and ready for your next custom AR build. The lower features the original "GATOR GRIP" texture on the front of the mag strap for added grip and a generous flare cut to the magazine well for quick magazine changes. It is constructed of high-quality 7075 T6 aluminum with mil-spec dimensions and a black hardcoat anodize finish. It also has a nylon tipped tension screw for adjusting to various uppers.