How 3-D Printed Guns Evolved Into Serious Weapons in Just One Year

Its been a full year since I watched the radical libertarian group Defense Distributed test fire the Liberator, the first fully printable gun, for the first time. Imura is one of a growing number of digital gunsmiths who saw the potential of that controversial breakthrough and have strived to improve upon the Liberators clunky, single-shot design. Motivated by a mix of libertarianism, gun rights advocacy and open-source experimentation, their innovations include rifles, derringers, multi-round handguns and the components needed to assemble semi-automatic weapons. Dozens of other designs are waiting to be tested.

The result of all this tinkering may be the first advancements that significantly move 3-D printed firearms from the realm of science fiction to practical weapons.

With the Liberator we were trying to communicate a kind of singularity, to create a moment, says Cody Wilson, who founded Defense Distributed and hand-fired the first 3-D printed gun in May, 2013. The broad recognition of this idea seemed to flip a switch in peoples mindsWe knew that people would make this their own.

Even as the DIY community has refined and remixed 3-D printed guns, its left legislators and regulators in the dust. Congressional efforts last year to place restrictions on printed, plastic weapons within the renewed Undetectable Firearms Act fell flat. That said, the legality of 3-D printing a gun in the United States remains unclear, which explains why most of the gun designers contacted by WIRED declined to comment or wished to do so anonymously.

Despite that legal ambiguity, it took only weeks for digital gunsmiths to improve upon the first fully 3-D printed gun. Defense Distributed printed the first Liberator in May, 2013, using a second-hand refrigerator-sized Stratasys 3-D printer it bought for $8,000. Later that month, a gun enthusiast in Wisconsin riffed on the Liberator to produce a working firearm for far less, using a $1,725 Lulzbot printer with less than $25 in plastic. It fired eight .38-caliber bullets without damage.

Two months later came the first fully 3-D printed rifle, built by a Canadian gunsmith identified only as Matthew. The gun, which he calls the Grizzly, fires .22-caliber bullets. In the video below, it fires three shots. Another clip, since pulled from YouTube, shows him hand-firing it 14 times. Wilson calls the Grizzly the best, first improvement on the Liberator.

The Grizzly, like the Liberator, requires removing the barrel to load a new round after each shot. But less than a month after Matthew unveiled the Grizzly, another gunsmith who calls himself Free-D or Franco test-fired a five-shot derringer revolver he calls the Reprringer. It shoots low-power .22-caliber rounds. Though the tiny revolver isnt entirely 3-D printedit uses 8mm metal tube inserts in each barrel and several screwsits metal components seem to allow for a far more compact design, making the the Reprringer the smallest working 3-D printed gun publicly tested.

The blueprint for that miniature six-shooter, along with dozens of other firearms, gun parts and even explosives like grenades and mortar rounds, are hosted online by FOSSCAD, the Free Open Source Software & Computer Aided Design. The group spun out of Cody Wilsons online gun printing community known as Defcad.

Most of FOSSCADs designs havent been publicly tested, and its loose-knit members are reluctant to reveal their identities. But one anonymous member summed up the groups motivations: First, I like guns, he wrote via instant message. And second, I think you should be able to 3-D print virtually anything you want.

Aside from the Reprringer, the anonymous FOSSCAD member noted another new, proven design that may be far more practicaland have far more serious implicationsthan fully-printed guns: a key part of a semi-automatic weapon called the lower receiver. That part, which comprises most of the body of a gun, is the most regulated element of a firearm. Print a lower receiver, and you can buy the rest of a guns components off the shelf without an ID or waiting period.

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How 3-D Printed Guns Evolved Into Serious Weapons in Just One Year