I call this one the "Peace Bringer", because this weapon wouldn't function in real life (as a coworker of mine explained) and therefore couldn't kill anyone.
This gun was born out of a "Steampunk/Sci Fi Gun"-themed weekend challenge with two coworkers. (First gun I've ever modeled)
The challenge posed the perfect opportunity for me to try out the Quixel Suite.
Sadly I wasn't able to finish the frontpart of the gun in time.
The gunhandle and gunbarrel are retopologized and pushed trough NDo and DDo, the front part is a high poly mesh with procedural materials.
I used the fantastic concept art by "Sergey Tsimmer" as template: