The gun maker, who goes by the online handle CanadianGunNut, is an active user on DEFCAD, the primary online forum for 3D-printed firearms. He is also known online as “Maker Matthew,” or “Koa Soprano.” Previously, CanadianGunNut successfully printed a ukelele, and he currently appears to run a private message board for printing related musical instruments. Ars’ attempt to contact CanadianGunNut through his YouTube channel was not immediately successful.
In his video, CanadianGunNut—whose actual name is unknown to Ars—noted that the gun fired a single shot, but the barrel split.
The Royal Canadian Mounted Police (RCMP), the federal law enforcement agency in Canada, seems to suggest that making such a firearm would likely be illegal in Canada, under current law.
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