I would like to ask some help from the more experienced guys on this board. I've run across a "DOU 44" rifle with a 4-digit serial number and "ff" underneath it. Does anyone have any idea what the "ff" means?

From the pictures, I don't see any "X"s on the receiver to indicate a Russianicon capture gun. Any other methods of assuring I wouldn't be paying a premium for a Russian capture forcematch?

Thanks in advance.
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