The US Army has tested controversial "robot dogs ... The robot included an AR-15-type rifle mounted on top of it on a ...

Aahh, the oh-so-controversial AR-15, the semiauto-only civilian market version of the U.S. Armed Forces’ M16 rifle. Everybody knows the “AR” stands for “Assault Rifle,” right?

Adam Lanza took his mother’s AR-15 rifle to the school and fired 80 rounds ... He was wearing his Army JROTC uniform. He kept notes in his bedroom drawer about his plans. He had joined the ...

The first one up borrowed a trainer’s rifle, peered through the scope at ... a nonbinary community organizer, had fired an AR-15.

A man accused of pretending to be a federal agent and shooting an AR-15 rifle outside a sheriff's office in Crockett, Texas is now behind bars. The incident was captured on surveillance cameras.

New Windsor police say they seized three AR-15-style assault rifles, 400 grams of cocaine, a scale and $3,900 in cash during the execution of a search warrant at a home on Stonecrest Drive Thursday.