I wanted a better machine gun for the trike model I have been working on. So I grabbed a few models, hacked them up, and this was the result. I sized the hole in the bottom to use a 1.75mm filament pin to connect with whatever model you attach it to.
I decided to source the trike too, so it is easier to find. But I do not include any files modified from the trike. Seriously though, artists deserve credit for their work.