As I told you I read an article and according it Kalashnikov was poor educated and the real inventor is Hugo Schmeisser. The Russians have taken his documents, samples even brought him and other German specialists in USSR after the war and they have continued the research. When the weapon was ready Russians have decided to change the story and an ordinary uneducated worker (he has just started working there) was proclaimed as the inventor. This is the story in short.
Considering the "We invented it first!" propaganda that was spewing from the Warsaw Block clear through the 1960's,
that story could very well be true. It's certainly no more outlandish than most of the other claims they made, and
it is quite easy to imagine the weapon as a child of Schmeisser, who was a genius with firearms.