The AK is the most under rated gun in the game. Its takes special skill with this gun and im not joking. Just the scar-h, the AK takes 2 to 3 bullets to kill someone. The trick is to burst fire it and not unload on someone.
The only thing weak about this gun is the accuracy which can be easily fixed with the first perk. Other than that its a perfect gun. Thats why its takes 70 levels to achieve it.
I truly hate the AK and the FAMAS. But if you can use the Ak like BK does then watch out, because you have something bad coming your way.
Not to mention what the AK can do with stopping power and FMJ attached.