cleaning kit

I have learned how to ID Combloc surplus steel magazines, but still have no clue on how to identify country of origin for AK cleaning kits and cleaning rods. Any resource, references, or guidelines will be deeply appreciated.

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I have a WASR AK and it doesn't have the well in the buttstock to store the cleaning kit. Is it possible to buy the buttplate with door and drill a hole into the stock for the cleaning kit? I don't know if the contours of the stock would match the buttplate but I would imagine anything can be...