Originally Posted by Push
The gun model you want is kinda difficult to find. I myself haven't found or stumbled upon a 3d model for that gun.
Hmm, are ones from Sketchup not the best then? I'll take a look around and see if I can find them from another source. I noticed that link doesn't seem to work either. If you search "Furious George" on there you can find the DSR 1 with the short barrel. I hope that helps, and I'll look around for another model.