Recover Innovations Inc Upper Charging Handle, Rec Uch17 01 Upper Charg Handle Glk Dbl Stk 9mm Metal Detectors Features:Nock bushing to prevent damage Features:Nock bushing to prevent damage to back of the arrow shaft Cut out of the handle is a shackle key drying vent allowing air to circulate around the blade when closed wet The uch upper charging handle for all stock slide double stack glock 9mm 40 s&w 357 pistols (except rtf models and gen5 glock 22 23 all other generations are compatible) is the easiest way to charge your glock without needing to modify your pistol Installation is simple and can be mounted to your glock in under 2 minutes with the supplied hardware and tool