A Ranger finally may have settled the debate between fans of the AK-47 and adherents of the AR-15. Joe Stenzel and Jared Potter, veterans of the 2nd Ranger Battalion, met while serving in the Army ...

Peterson and Zuppone illegally exported thousands of AR-15 parts from the U.S. to the Argentine smuggling group without a required license from the U.S. Department of State.

The AR-15 is the most popular rifle in America, and rightfully so. There’s a lot to like about the design, but don’t overlook other options just because they aren’t an AR-15.

The AR-15 has become inextricably linked with mass shootings in the U.S. A 2020 study by professors at the University of Alabama and Worcester State University found that semi-automatic rifles are ...

With all of Stoner’s innovations—lighter material, fewer parts, and the gas system, as well as an in-line stock and a pistol grip—Jim Sullivan found shooting the prototype AR-15 to be easy ...

Former AJC reporter Cameron McWhirter cowrites "American Gun," a chronicle of the AR-15, from its invention in a garage in California to the weapon of choice for mass shooters.

Executive Editor Sally Buzbee's letter about The Post's series on AR-15s in America explains why the investigation chose to show the gun’s damage to the human body.