I saw a Glock holster by PrintedFirearm (http://www.semaker.com/productdetail/6420) and took some inspiration from that design.
I matched the Colt holster so the catches from the Glock design can be reused. I glued them together.
I used a pen spring for the pin locking switch and placed small felt pads inside the holster to stop the gun from rattling.
Printer Brand:
FlashForge
Printer:
Creator Pro
Rafts:
Yes
Supports:
Yes
Infill:
30%
Notes:
Printed in black PLA. Be careful when pushing the locking pin in place.