Cross Armory Extended Slide Lock fits all Glock Gen1-5 and all P80 models. Features improved slide removal for cleaning and maintenance work, a necessity for any Glock enthusiast looking to improve their weapon. Does not interfere with any holster. *Note The Cross Armory Slide Lock fits Gen5 but is also backwards compatible with all Gen1-4. Gen4 and previous generation Glock slide locks will not work with your Gen 5.