I'v posted some 3d printed model weapon parts and model guns, but this is working toy foam dart and rubber band pistol.
Video shows how to assemble it and how it works. Kudos to the author!
Thingiverse link:
http://www.thingiverse.com/thing:7512
Video shows how to assemble it and how it works. Kudos to the author!
Thingiverse link:
http://www.thingiverse.com/thing:7512