M16

Overview
The M16 is a 3 round burst weapon with good fire power, range etc. On zombies it is good to about round 13. Then you should upgrade it or aim for headshots. On Multillayer it is an exelent long range weapon. Many players on MW3 dislike it due to the large decrease in fire speed. It has good attachments that help make it better.

Pack-A-Punched
When PaPed it becomes the SkullCrusher. It is now a Full-Automatic, with more damage and a grenade laucher.

Regular

 * Grenade Launcher
 * ACOG Scope
 * Red Dot
 * Reflex Sight
 * Suppreser
 * Flamethrower (not in Wii Vesion)
 * Extended Mag

Zombies

 * Full-Auto
 * Grenade Launcher