A handgun converted into an automatic weapon was used in a recent shooting. Guns with machine gun conversion devices are on the rise.

An Aurora man is facing 72 charges after authorities say he sold guns and 3D-printed machine-gun conversion devices. They ...

A crazy Long Island geezer allegedly transformed his basement into a makeshift shooting range equipped with an incredible ...

Police say they recovered the gun along with three "switches," which convert a firearm into a fully automatic handgun.

A suspected gunman was fatally shot by Massachusetts police officers early Sunday after he allegedly opened fire on them with a fully automatic firearm, leaving two officers injured, authorities said.

Seatle police officers arrested an armed, 20-year-old felon with an active escape warrant in the Northgate neighborhood Sunday afternoon.