"Glock switches," small devices capable of turning almost any handgun into a machine gun, are increasingly being found among seized firearms in the Phoenix area, according to the Bureau of Alcohol ...

A tiny, cheap device known as a "Glock switch" or a "machine gun conversion ... which can be made on a 3D printer and sometimes cost as little as 40 cents. ATF officials took Fox News on a tour ...

After Soto Melendez removed the 3D printer from his apartment, Velazquez-Rodriguez wrote a follow-up message saying, "Someone hit me with the switch ... template files for Glock switches and ...

This article originally appeared on Arizona Republic: 3D printing makes dangerous 'Glock switch' devices easier to get, ATF says ...

In addition to collaborating with local police departments to trace the sources of Glock switches, the bureau is partnering with libraries and schools to raise awareness about the potential misuse of ...