"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 device" allows criminals to convert a handgun into a machine gun and unleash 30-plus rounds in seconds, federal authorities ...

Part of the gun that the police believe was used to kill the C.E.O. of UnitedHealthcare was made by a 3D printer using a popular design found online. By Thomas Gibbons-Neff and Aric Toler At first ...

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 ...

In 1987, a 22-year-old Venezuelan named Jorge Leon invented a small metal insert that could turn the Glock 17 semi-automatic pistol into a fully automatic machine gun with the flick of a switch. Leon ...

INDIANAPOLIS — A Franklin man will spend two years in federal prison for 3D printing and trafficking firearms and Glock switches. During the investigation, 28-year-old Alexander Clark was seen selling ...

The ATF and Cincinnati police said Wednesday that they are finding guns illegally modified to make them fully automatic on a weekly basis. Also called a "chip" or "auto sear," it's a small device that ...

A Baton Rouge man and woman were arrested on Tuesday for allegedly printing, constructing and selling Glock switches after authorities searched their apartments, according to police. The pair also ...