AK-47

The AK-47 is an assault rifle featured in SAS Zombie assault 2/ insane asylum & SAS zombie assault 3

SAS zombie assault 2
The AK-47 can first be unlocked in the vehicle depot and later bought for 250$. The AK47 is one of the most wildely used non-premmium weapons in the game dealing a massive amount of damage and being reletively cheap.

Insane asylum
The AK-47 make's a return in the SAS zombie assault 2 insane asylum add-on doing exactly the same as it's zombie assault 2 counterpart

SAS zombie assault 3
The Ak-47 returns yet again in zombie assault 3 being unlocked at rank 9 and can be purchased for 400$. It is fairly powerfull but because of the new vast array of weapons in Zombie assault 3 it is no longer the most powerfull assault rifle but it is still one of the most wildely used weapons in the game in multiplayer. It has a clip of 60 ammunition.

Trivia

 * despite being extremely versitle it has a lengthy reload time compare to most assault rifles