Ervin hired a machine shop to make Auto Key Cards, she said at the time, estmating the total production was “likely in the 2,000-ish range.” The case has drawn attention among gun-rights ...

From 2012 to 2016, just 814 machine gun conversion parts were taken into custody by the Bureau of Alcohol, Tobacco, Firearms and Explosives. That swelled to 5,454 from 2017-2021.

President Joe Biden signed an executive order Thursday that aims to curtail the prevalence of 3D-printed guns and machine gun parts and to improve school shooting drills. The executive order ...