When it comes to America’s favorite rifle platform, few debates spark more fire than the one between the military M4 and the civilian AR-15. They look nearly identical. They fire the same 5.56 NATO ...

DURHAM, N.C. — The five friends had spent the morning stalking through the trees and crossing a creek in military formation ... had fired an AR-15.

He described it as a military-style weapon best suited for “wreaking death and destruction,” quoting a trauma surgeon who ...