Our MJOLNIR "skeletonized" AR-15 / AR-10 pistol grips are CNC machined on our high-tech equipment in our facility in Allendale, Michigan. They fit any receiver that accepts a standard AR grip. We painstakingly craft these from solid billets of high-quality aluminum. The unique geometry provides for an ergonomic grip with a unique look unparalleled by anyone else in the industry. Our aluminum grips weighs just under 6oz. Has a beautiful machined texture that simulates the effect of stippling on polymer components. Includes a low profile mounting screw and special installation tool. Fits most AR15s (Both forged and billet) as well as AR10/AR308 or any receiver that accepts a standard AR15 grip.