numrich arms generally has a large amount of replacement parts for most milsurp bolt actions. most of their stuff is current production however they have been known to get USGI stuff in from time to time.
liberty tree collectors also has a number of parts available but their selection isn't as wide as numrich.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
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Bean counters told me I couldn't fire a man for being in a wheelchair, did it anyway. Ramps are expensive.-Cave Johnson.