I normally don't post instructions (since I am quite lazy...) but now, I decided to do it.
This is an instruction video for an K'nex revolver, inspired by Oompa-Loompa. I only made a smaller version. It's also quite powerful. The only downside is that it has a block trigger, but I really could not find a way to put a regular trigger on it. You could make a larger version so you have space to put a true trigger on. Well anyways, I'll just tell you some pro's and no's:
-Automatically revolves, meaning you don't have to turn it yourself