To install Grip, CLEAR PISTOL FIRST! Tools needed-Gloves, round dowel slightly larger than the inside diameter of grip, A little heat to warm grip (hair dryer on low) Wedge dowel half way, straight up and down to slightly spread grip. Insert mag catch common to grip onto pistol mag release at about 80 degrees to pistol. Rotating into place, at the same time removing wedge. Align hole of grip. Install screw with allen wrench that comes with your new grip.