Check out this sweet Steampunk ray gun. It sports a pretty nice, not so over-the-top Steampunk look but still manages to have lots of nice detail. The “Power supply” consists of a vacuum tube and “brass bits” installed inside the gun. The smoky look of the vacuum tube makes it look as if it has just been fired.
There’s even detail inside of the barrel. The creator added some clockwork parts inside so that it looks like the delicate clockwork mechanism is focusing the particle beam. Nice! The end result is a nice looking Ray Gun suitable for any Sci-Fi adventure.