Glock holster designed for model 17 but it should fits well for the other models. Assembled by 3 printable parts. There are three types of catch: 25mm for molle standard, 40mm for belt, 40mm extended.
Commercial parts you need to buy is: couple of screws with nuts, spring and 4 mm diameter pin. Original posted and designed by user PatrykSWD on grabcad.