USP .45 red dot rail

Fits the airsoft version from KWA/KWC. Not garateed that it fits the real pistol.
Fastened with M5x25mm screws and bolts.
Fits standard pictinny (20mm) accessories that are 10cm long.
There's a cut-out underneath the rail to clear the high profil front sight (USP .45 Match)
For some reason, the .stl has to be upscaled. Simply scale it up until the lenght is 140mm long in your slicer. I had to upscale from 100% (original) to 10'000%.