A tiny, cheap device known as a "Glock switch" or a "machine gun conversion device" allows criminals to convert a handgun into a machine gun and unleash 30-plus rounds in seconds, federal authorities ...

"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, ...

When federal agents searched a home in Northern Kentucky, they found nearly a dozen devices meant to turn a semi-automatic firearm into a fully automatic one, prosecutors said. Not only did ...