download here! http://defcad.org/ The Liberator is a single shot handgun that is almost entirely 3D-printed. All sixteen pieces of the Liberator prototype are 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. Even better, this gun can be printed at home by anyone with the freely available CAD files and a 3D printer. Check out the promotional video showing a test fire below. You can learn more about the Liberator from Forbes here.