:The word prototype was present in this version: 
 :http://en.wikipedia.org/w/index.php?title=AK-47&oldid;=613144916 
 :For some reason you had problems with it, so I changed it to the current version that you didn't at the time dispute. 
 :So for the x-th time, I've got no problem with changing this sentence as it's demontrably confusing, but rather that deleting it I find preferable to expand on the informations that I mentionned. 
 :And when did the manufacturer (or rather what's left of it after it's 2012 bankrupcy) become the Soviet army? I'd like to see any document from the USSR that refers by AK-47 to anything but a prototype. Also no need to repeat ad nauseam the same couple of sentences, it adds nothing to the discussion.