I tried to do a search, but couldn't find it, I know there's a pic on the web of the first AK design and doesn't look like what we see now.
So my .02 is Kalashnikov came up with the design but people with more skill had their hands in it to improve it and make it simpler to manufacture.
But why is this coming up now, why not while he was still alive? To me it's just more internet bull shit. Like starting a web site stating there's proof of where Jimmy Hoffa is.