derekmead writes "3D-printing gun parts has taken off, thanks to the likes of Cody Wilson and Defense Distributed. While the technology adds a rather interesting wrinkle to the gun control debate, the ATF currently is pretty hands-off, ... 'We are aware of all the 3D printing of firearms and have been tracking it for quite a while,' Earl Woodham, spokesperson for the ATF field office in Charlotte, said. 'Our firearms technology people have looked at it, and we have not yet seen a consistently reliable firearm made with 3D printing.' A reporter called the ATF's Washington headquarters to get a better idea of what it took to make a gun 'consistently reliable,' and program manager George Semonick said the guns should be 'made to last years or generations.' In other words, because 3D-printed guns aren't yet as durable as their metal counterparts, the ATF doesn't yet consider them as much of a concern."