Concept for +700, a compact railgun pistol. It's not particularly powerful based on its size, but it gets the job done.
The original idea for the M99 came a few years ago: I wanted to design a gun that would serve as the sort of "default", no-frills platform for my setting. In doing so one of the tropes I wanted to try to avoid was what I felt was the tendency for sci-fi pistols to be extremely bulky, and so opted for a design that was extremely compact as a sort of subversion of that.
I've just decided to use it to try my hand at some proper hard surface modelling with HardOps and DecalMachine. Next I think I'll need to learn to do materials better, to add at least a little bit of wear and variation to the surfaces.