Last modified on 16 February 2014, at 11:15

40 mike-mike

EnglishEdit

Introduction of an unfamiliar soldier with the Mk19.jpg

NounEdit

40 mike-mike (uncountable)

  1. (US Army and Marines, military, slang) Any weapon firing a 40mm grenade. Often specifically the M203 grenade launcher whether mounted underneath an M-16 or variant. Often in the Marine Corps, the "40 Mike-Mike" is slang for the Mark-19 Automatic 40mm Grenade Launcher.