Twenty-six people in Tennessee have been recently convicted or face charges for possessing “switches,” devices that convert semi-automatic firearms into a machine guns, which can be made with 3-D printers and bought on the internet, federal law enforcement officials said during a news conference Monday.
Federal investigators and local law enforcement officers in Memphis and Jackson have been trying to slow down the proliferation of switches as they work to stem a growing wave of gun violence, said Kevin Ritz, the U.S. attorney for the federal district in West Tennessee.
