M6A2

"The latest model of the M-Type carbine rifle that has been designed for modern battle environments. A Rail Integration System (RIS) and lightweight construction make this Assault Rifle a solid choice in combat. - Weapon Description"

The M6A2 is an assault rifle released in the 12-23-09 Patch.

It currently requires First Lieutenant III to unlock

Trivia

 * The M6A2 has a very, very slight increase in accuracy and recoil compared to a M416. This makes it almost obsolete to the regular M416 but not to an M416 CQB due to the fact that you can actually equip a scope on it.