Stocks on Russiancaptures are not original to the rifle in question. You can tell only what arm of service the stock was originally issued to. They took the rifles apart completely, inspected the individual parts, scrapped those that were not usable and placed the rest in individual bins specific to that type of part. Then they reblued them and reassembled them just by picking them from the bins. Non necessary parts like the lock screws and sight hoods were simply scrapped.