Black Textured Rubber Peel and Stick Grip Enhancements for Glock Gen3/Gen4 Models: 19, 23, 25, 32, 38 Black Textured Rubber Peel and Stick Grip Enhancements for the Glock Gen3/Gen4 Models: 19, 23, 25, 32, 38 Our Black Textured Rubber grip enhancements are superior to any stock polymer grip. If you want a better grip on your handgun, but do not want any level of aggressiveness, then this is the grip enhancement kit for you. They will improve the feel of your handgun. FREE Shipping with Tracking via the US Postal Service. This is a self-adhesive peel and stick friction improving product that attaches directly to your existing grip frame or removable grip.