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

When he got pulled over with two boys, 14 and 15, in the car, police said they found four guns and a Glock switch.

Many handguns, including some Glock pistols, can be converted from semi-automatic, to fully automatic weapons by the use of an attachment called an auto-sear, or "switch." House Bill 1287 would ...