A civilian version of the M16 is the semi-automatic AR-15. “No matter how lethal the weapon, it’s all past the ability of the state to regulate?” the judge wanted to know.

USA TODAY reported that an AR-15-style rifle was what the man the Federal Bureau of Investigation identified as Thomas Matthew Crook, 20, was using. CNN reported Sunday that the gun was used to help ...

Additional law enforcement officers were called and executed a search warrant at the home, where they found an "M16 made to fire as semi-automatic, clear bags containing 80 grams of cocaine, and a ...

Shane Tamura opened fire using an AR-15 rifle in the Midtown Manhattan office building, killing five, including a police officer, and injuring four.