Defense Distributed Has 3D-Printed an Entire Gun

Daniel_Stuckey writes with this snippet from Motherboard with an update on Cody Wilson's Defense Distributed project: "On Friday morning, Forbes's Andy Greenberg published photos of the world's first completely 3D-printed gun. It has a 3D-printed handle, a 3D-printed trigger, a 3D-printed body and a 3D-printed barrel, all made of polymer. It's not completely plastic, though. So as not to violate the Undetectable Firearms Act and guarantee it would get spotted by a metal detector, Wilson and friends embedded a six-ounce hunk of steel inside the gun. They're calling it 'The Liberator.'" (A name I'm sure that Wilson didn't come up with accidentally.)