This is a drop holster designed to accommodate an airsoft P90. It requires straps to attach to the leg and belt, and a strap to secure the airsoft replica. It may be able to hold a replica without the strap, but if so I wouldn't suggest trying to run that way.
Be advised that this is not intended to be quick release, though quick release may be possible, depending on how the straps are attached.
I'm classifying this as a work in progress, and it will retain that classification until I can print it and see how well it works. I'm a bit low on ABS-like resin at the moment.
11/9 UPDATE: I finally sprang for some more resin, so this is on my list of items to print. However, it uses a LOT of resin; I'm going to re-work the print and see if I can get that cost down as well as strengthen some areas before printing my first prototype. If anyone beats me to it and prints this version, let me know how it turns out!
モデルソース
