Pachmayr Grip Extender will greatly increase your control and shooting comfort when added to popular compact and sub-compact handguns. The extension perfectly matches the shape and texture of the handgun, so they look like they are part of the pistol, rather than an add-on. It is easy to install and are made of tough, high strength polymer that stands up to the roughest handling. Compatible with your mid and full size Glock 17/18/19/22/23/24/25/31/32/34/35/37.