M16A3

Overview
M16A3 is the automatic assault rifle originated in United States. It was actually a modified variant of M16A2 which was a 3 rounds burst fire rifle

In Gun Randomizer, M16A3 is one of the classic weapon from March of The Dead. Although despite its classic being, it got overshadowed by many, many of weapons in the game

Pros

 * Fast fire rate gives you better chance to hit something
 * Standard amount of magazine size (30 rounds)
 * 3-4 shot kill
 * Chance to get akimbo of this weapon

Cons

 * Overshadowed by most weapons
 * You can't use iron sights with Akimbo
 * You may dump your entire mag within seconds

Trivia

 * M16A3 is a modified version of the M16A2 adopted in small numbers by the U.S. Navy SEAL, Seabee, and Security units.
 * It features the M16A1 trigger group providing "safe", "semi-automatic" and "fully automatic" modes instead of the A2's "safe", "semi-automatic", and "burst" modes.