The Liberator: the first all-plastic (except for a nail used as a firing pin) handgun
that can be fabricated on a 3-D printer
"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."
In an update, Greenberg notes: "Defense Distributed’s political opponents aren’t waiting around for its printable gun to be finished and uploaded before calling for it to be banned. Congressman Steve Israel issued a press release Friday responding to this story: “Security checkpoints, background checks, and gun regulations will do little good if criminals can print plastic firearms at home and bring those firearms through metal detectors with no one the wiser,” his statement reads. “When I started talking about the issue of plastic firearms months ago, I was told the idea of a plastic gun is science-fiction. Now that this technology is proven, we need to act now to extend the ban [on] plastic firearms.”
Full Forbes article here
While Forbes also reports that Brooklyn-based Makerbot Industries, 3-D printing firm, has cracked down on printable gun designs. As the article notes, "You have the right to bear arms. But you don’t necessarily have the right to upload them." Full Forbes article here