SRG70 Peel and Stick Grip Enhancements for Glock Gen 2 Models: 17, 22, 31, 34, 35, 37 SRG70 grip enhancements provide unsurpassed gripping of your polymer framed handgun. SRG70 material is a Laser-Cut, Peel-and-Stick, Decal Style Grip Enhancement. SRG70 has the appearance of fine stippling with a rubber coating. SRG70 will not damage your handgun or reduce its value. This is a self-adhesive peel and stick friction improving product that attaches directly to your existing grip frame or removable grip. What's amazing is that something so thin and so light can produce such a dramatic difference.