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. Comes with UCH Enhanced Upper Charging Handle as well as our GCH17 lower profile Charging Handle. Compatible with Gen1-5 17/19/24/26/27/31/32/33/34/35/43/45/48 and Gen1-4 22/23 (Except rimfire Models).