assault rifle

noun2

1. •
   A military select-fire rifle or carbine that fires an intermediate-power cartridge, from a detachable magazine.

   • A man dressed as a lab tech, his blue scrubs startlingly pale against the vivid red and black chaos, moved into sight from behind the SUV. He carried an assault rifle. — 2014
2. •
   (informal) Any firearm meeting the definition of an assault weapon, and in the form of a rifle.