THIS IS NOT A REAL 3D PRINTED GUN!
Sorry I thought I'd start with the disclaimer since '3D Printed Gun' can cause a bit of fuss at the moment! This gun was created to replicate the classic Marvin the Martian Ray Gun from Looney Tunes, to be used as a prop with a costume. If you glue things in correctly, the trigger actually moves, and the dial on the back to control the size of your KABOOM turns as well. Make sure you slot these parts into position as you glue the 2 halves of the body together, following the exploded view shown in the images.
The parts were split this way to fit on an Up! Plus 2 printer, and minimise support material requirements. Super glue is great for gluing everything together, some undercoat and sanding to clean things up, and a nice yellow spray paint to finish things off.
Read all the details and see photos of the process of 3D printing on my blog https://edditiveblog.wordpress.com/2015/08/07/marvin-the-martian-ray-gun-complete/