Were did you acquire your parkerized K-sports SKS? I bought the 20" parkerized K-sport SKS model from a gun store in Kali about 5-years ago for $150. As for information try the website SlackO gave you. I belong to that site also, but I never did ask them for any info on this model. Good luck, Later.
P.S. Keep us posted if you get any info.
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"They may kill me, but there will always be more like me". -EDA
They told me,"throw down your guns, return to the earth...HAH! time enough for the earth in the grave". -EDA
"Giving up is not in my vocabulary". -EDA
"Do not fear the governments, that fears you". -EDA