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 thirty-plus rounds in seconds.

The White House says action is needed against an emerging threat, with some guns costing as little as 40 cents.

Law enforcement officials from across the country are concerned about a simple, cheap device that can make a typical handgun much more deadly.

The Biden administration announced new actions Thursday on a range of gun-related issues, including a new executive order in part aimed at giving schools guidance about how to train for an active shooter.

President Joe Biden signed an executive order Thursday that aims to curtail the prevalence of 3D-printed guns and machine gun

STORY: U.S. President Joe Biden signed a new executive order to tackle changing trends in gun violence Thursday.3D-printed firearms and machine gun conversion kits are among the threats that would be assessed by the new federal task force the order aims to create.

The order, signed by Biden at a White House event, sets up a new federal task force to assess the threat posed by machine gun