A Glock switch is a device that allows a semi-automatic Glock pistol to function as a fully automatic machine gun.

The law, which goes into effect immediately, targets devices that turn semiautomatic handguns into makeshift machine guns.

Those devices, some called "Glock switches," can be installed on handguns to automatically fire more than one shot, without manual reloading, by a single pull of the trigger.

The Alabama Senate passed Senate Bill 116, making the possession of Glock switches—a device that converts handguns into fully ...