The ZEV Technologies Grip Module gives you an optimal option for the modification of your ZEV OZ9. This Compact Grip Module is ready to install out of the box. Simply remove the take-down pin, install the new grip, and install the take-down pin. The Grip Module comes with the ZEV Gen4 Magazine Release already installed as well as the required take-down pin.NoteNot compatible nor interchangeable with the OZ9 StandardFeaturesIncludes take-down pinIncludes Magazine Release (pre-installed)Solid Polymer ConstructionUnique Design for Glock Customization