I read a review of the BM-59s they did (basically the same receiver) and the reviewer could pull the op-rod away from the receiver while the bolt was locked up. Such were the "tolerances."
Don't get me wrong, I'm entered in the drawing but merely as a resale item.
I don't guess the link you provided is the one that gets you 50 extra entries each time you use it, is itInformation
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