HamburgerFPS shows this mount made for airsoft Glock pistols and it is a 3D printed one that can be downloaded from Cults3D... "The ALG 6-second Mount only supports RMR and T1 red dot. but I want to use different optics.so I made this model.

The charging handle is for the old version TM Glock(new version not sure) and WE tech Glock. Glock17 and Glock18 charging handles are different sizes but all are included."