The AR-15 rifle, billed as “America’s rifle” by the National Rifle Association, has been commonly used by mass shooters and is one of the most ubiquitous weapons in the United States. By Thomas ...

The AR-15 was first developed as a lightweight, rapid-fire weapon for American soldiers and later sold as a civilian product. Here, an attendee holds a Springfield Armory SAINT AR-15 style rifle ...

This article was featured in One Story to Read Today, a newsletter in which our editors recommend a single must-read from The Atlantic, Monday through Friday. Sign up for it here. Eugene Stoner was an ...

Two cases to be heard in the fall challenge legality of state and local bans on the weapons, which are popular with gun owners and have been used in mass shootings. By Mattathias Schwartz and Ann E.