
Sometimes referred to as "assault weapons" or "military-style rifles," this class of firearm can encompass many different kinds of guns - not just the more well-known rifles, such as the AK and AR-15 series weapons. From Sandy Hook to San Bernardino to Orlando to Las Vegas, "most of the deadly high-profile mass shootings in the past decade were perpetrated with assault weapons, particularly AR-15-style assault rifles," Klarevas said.

What do we do about it?īut along with that rise in popularity, the use of these weapons in mass shootings is also climbing, according to Louis Klarevas, a research professor at Teachers College, Columbia University who specializes in gun violence and safety. MORE: America has a gun violence problem.
