The Zev Technologies™ Generation 4 Magazine release for the Glock®; is constructed from Billet 6061 Aluminum and Mil Spec hard anodized Black. It has a Honeycomb non-slip face;for a more tactile engagement surface. The contact point on the mag release face is ergonomically angled to the rear to allow ease of manipulation in performing magazine changes. The Mag Release takes minutes to install with the use of needle nose pliers and a long shaft, slim, flat head screwdriver.Note:It is easiest to remove and replace the factory Glock®; Mag-release Catch Spring for the magazine release installation. Then installing it back in its pin position after you remove the factory unit and replace it with the ZEV™ component.