To the best of my knowledge, the two weapons were designed with entirely different tactics in mind, thus different accuracy standards. When I had the chance to fire an AK, I wasn't on a KD course, so I can't say for certain how accurate it is, or isn't. However, the weapon was primarily designed for close in fighting, 200 meters and less IIRC. Therefore, it isn't required to make consistent head shots at 500 meters. The US has always placed high value on marksmanship at longer distances. Frankly, if I can take a guy out of the fight at 500 yards, I'm all for it!