Two mass shootings in California this week come as gun violence experts warn mass shooters are increasingly using semi-automatic weapons.

The number of shootings involving automatic weapons in the US has skyrocketed in recent years, suggesting a troubling resurgence in the use of machine guns by criminals, according to an analysis ...

The gunmen who opened fire outside a popular hookah bar, killing four people and wounding 17 others, on Saturday night likely used weapons with an illegal “switch” that allowed them to fire ...

The gunmen who opened fire outside a popular hookah bar, killing four people and wounding 17 others, on Saturday night likely used weapons with an illegal “switch” that allowed them to fire ...

The best automatic weapons in Fallout 76 are essential for survival in the wastelands against tough enemies. New updates bring powerful weapons like the V-63 BERTHA and Ticket To Revenge for ...

Semi-automatic rifles, such as those used by the Nashville school shooter, cause great damage to the human body. Trauma experts explain why they're so dangerous.

These are small devices that are used to convert semi-automatic handguns, like the popular Glock, into weapons that can fire dozens of rounds in seconds.

How bump stocks change the way semi-automatic weapons are fired A bump stock modified firearm can fire 400 to 800 rounds a minute, experts said.

Why semi-automatic rifles like those used in recent shootings can cause so much damage The Nashville shooter brought two assault-style weapons into the school.

The weapon, an AR-15-style rifle, was used to help identify the shooter. Since the end of the Assault Weapons Ban in 2004, the AR-15 has become one of America's most popular firearms.

Automatic weapons have been used in several high-profile assaults in recent years, including a mass shooting in Sacramento, California, in which six people were killed and a dozen injured, a ...