A lightweight, air-cooled, gas-operated, magazine-fed rifle designed for either automatic or semi-automatic fire through use of a selector lever. There are four variants - the M-16A1/A2/A3/A4. The M-16A2 incorporates improvements in iron sight, pistol grip, stock and overall combat effectiveness.
"Got me feeling like opium, I'm tryna dance with the loaded M" - Jim Jones - "Summer Wit' Miami"
by mocha_mami March 10, 2006