Zig Zag revolver

[1][2] It was created using a $500 plastic 3D-printer, however the name of the printer was not revealed by the creator.

[2] He was arrested in May 2014 after he had posted a video online of himself firing a 3D-printed Zig Zag revolver.

[5] The creator decided to call it the Zig Zag, after its ratcheted barrel modeled on the Mauser Zig-Zag.

[4] According to the Wired Magazine "Imura assembles the handgun from plastic 3D printed pieces, a few metal pins, screws and rubber bands, then test fires it with blanks".

Once reattached, the operator pulls back the slide where the firing pin is attached, pulls the trigger, which releases the slide into the round, firing the weapon.