All the files to build it can be found at my thingiverse page
It was painted using acrylic paint and weathered with a small paintbrush and black paint. The yellow tube is a piece of coax cable that I painted with yellow paint. All the decals are printed on ordinary paper, glued to the model, then weathered.
It has a working laser diode (else it wouldn't really be a laser pistol). It has a working trigger, functioning energy cells (in the form of 3 AA batteries) that can be reloaded and a potentiometer connected to the knob on the back.