PM522 Washbear is first functional 3D-printed revolver

Though many places have taken action to make 3D-printing firearms illegal, there's still a thriving community of industrious designers who have tasked themselves with designing the perfect printed firearm. We've seen various prototypes of single-fire handguns; there's a new notable design being shown off, though, and this one comes in the form of a fully functional printed revolver. This revolver …