Few lines in the sand remain as contentious as the AR-15; to some, it’s a symbol of American liberty and responsible gun ownership, while to others, it’s an instrument of violence and tragedy.

“Hit!” an instructor called. It was the first time that D, a nonbinary community organizer, had fired an AR-15.

Industry titans, like Sturm, Ruger & Co, added the AR-15 to their lineup of handguns and pistols. For some, the rifle became a symbol of masculinity. In 2012, manufacturer Bushmaster launched an ...

Editor’s note: We are publishing these 3D animations to show the destructive power of the AR-15. The images may disturb some people. The wounds show the lethal force of the AR-15. But they are ...

this would have been a symbol of peaceful worship," Jones said. "But in the context of Donald Trump Jr with a Jerusalem Cross on the side of an AR-15 rifle, the context is very clearly one of ...

Why do so many mass shooters use AR-15s? Partly because so many Americans have them, partly because they're designed to be easy, cheap and effective.

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 ...

My kids are nervous about my dying.” Another shopper’s tableau included retro yard furniture, a metal ice-cream bucket, ...

The boy, armed with an AR-15 style rifle, shot and killed two other 14-year-old ... happened against a backdrop of GOP leaders who have increasingly made firearms a symbol of their own political ...

The fact is that we still have trouble acknowledging juvenile killers as anything but incomprehensible monsters. A generation ago the U.S. latched onto a bogus notion that some adolescents are ...

The fact is that we still have trouble acknowledging juvenile killers as anything but incomprehensible monsters. A generation ago the U.S. latched onto a bogus notion that some adolescents are ...