Tactical Decal Grip Kit for Gen 4 G32. 
NITRO design by Invision Artworks. Features a textured, rubber-like surface to give you a better grip and more control of your firearm. You can cover just the frame of your Glock 32 or add grip to the slide as well. Easy, do-it-yourself installation. 
Easy, do-it-yourself installation, watch the video:
