Phil Massaro tackles the 6mm ARC, a military cartridge that's equally at home in the hunting field.

The law, which goes into effect immediately, targets devices that turn semiautomatic handguns into makeshift machine guns.

A New Jersey cop was shot and killed in a barrage of 29 bullets fired by a 14-year-old gunman with an automatic weapon — and ...

A man was grazed by a bullet after police say his dog's paw got stuck in a gun trigger guard, causing the weapon to fire.