The deal with the AK is it was given away by the hundreds of thousands.
Funny, so were M-1 Garands, M-1 Carbines, Thompson amd M-3 submachine guns, AND M-16s. Maybe not as many singularly as the AK-47. But the US is far from clean in the international weapons trade, whether giving away, or selling those weapons.
You get that kind of numbers with any sort of weapons its going to make a difference. Its not the gun, but the shear number of combatants.
Funny that was exactly the point I made above that you attempted to counter by saying those masses can be defeated by lesser well trained better equipped forces.
As to the 7.62X39, well the Russians themselves thought it to be an inferior round, they went to the 5.45 round for the AK-74.
And Kalashnikov was quoted numerous times in disagreement with the change. So who is right? Frankly, I don't want to be shot with either round and the numerous US soldiers killed or wounded in Viet Nam and elsewhere since then may question it being inferior. It's funny because so many times on these very same forums we here this caliber or that caliber is inferior. The 9mm is often mentioned as such, yet virtually every army on the planet used 9mm for handguns and sub machine guns.
Still even with the 5.54 the AK is no match for M16.
And inveresly the M16 is no match for the AK in the role it was designed for. The AK-47 is a simple design, easy to manufacture, easy to maintain, and able to take massive use and abuse and still work. For the mass attacks and mass firepower it is perfect. It was never designed nor intended to be the rifle of a marksman. It was designed for peasants to operate. maintain, and put down a ton of firepower.
I would not feel inadequately armed if I was equipped with either weapon. The only thing that might change would be my tactics.