Cody Wilson has completed his 3D printed handgun. Forbes reports …

All sixteen pieces of the Liberator prototype were printed in ABS plastic with a Dimension SST printer from 3D printing company Stratasys, with the exception of a single nail that’s used as a firing pin. The gun is designed to fire standard handgun rounds, using interchangeable barrels for different calibers of ammunition.

Technically, Defense Distributed’s gun has one other non-printed component: the group added a six ounce chunk of steel into the body to make it detectable by metal detectors in order to comply with the Undetectable Firearms Act. In March, the group also obtained a federal firearms license, making it a legal gun manufacturer.

The gun appears to fire a very low powered pistol round. It looks like a .25 ACP to me. The gun can probably only fire one shot. A gun like this can be easily built out of a pen, a spring and a nail using nothing more than a drill and a hacksaw. It does not require a $10,000 3D printer.

Thanks to everyone who sent this in.