The Ghost Extended Magazine Release, is designed so that you can drop a magazine without changing your firing grip and so you do not have to modify your Glock's frame. It is designed to give you the maximum surface area possible for comfort and speed of release. Easy installation, remove the old magazine release install the Ghost Extended Magazine Release body and then snap the ergonomic tear drop button into place. To remove the Ghost Extended Magazine Release pop off the button and remove the body. For a semi-permanent installation use a drop of glue for plastics on the button's leg then snap it into place. You may use the Ghost Extended Magazine Release for all lawful purposes. If you are going to use for self defense check to insure that the magazine is not released inadvertently. Functions on all models except: Note: Will not fit Glock model: 20/21/21& 20SF/29/30/36 & GEN 4's.