
A south suburban man sold an undercover federal agent 25 “Glock switches” that allow handguns to fire multiple rounds in a single trigger pull, like a machine gun, according to prosecutors.
Anthony Prisco, a 20-year-old from Oak Forest, allegedly sold the switches — also known as “auto sears” — as well as a 3D printer and a .38 caliber pistol with an “obliterated” serial number to the agent in June, according to an indictment announced Friday by prosecutors in Chicago’s federal district court.