An AR-15 recovered near the scene of a shooting along Interstate 75 in Kentucky is believed to be the weapon used by the gunman who opened fire on drivers and hospitalized five people. NBC News ...

A 14-year-old boy used an AR-platform-style rifle in a high school near Atlanta, Georgia and killed two students and two teachers.

The weapon, an AR-15-style rifle, was used to help identify ... a folding or telescopic stock, pistol grip, bayonet mount, a flash suppressor and/or a grenade launcher. More generally since ...

The weapon, an AR-15-style rifle, was used to help identify the shooter ... a folding or telescopic stock, pistol grip, bayonet mount, a flash suppressor and/or a grenade launcher. More generally ...