Found 3 new in box 2011-2012 mfg WASARs. All three look to have been built on original parts kits as the receivers are 1984, 1978 and 1980 marked and sn numbered. With that so long as all the major things are straight like gas block, front sight and rear sight base are these any better or worse than any other WASAR. Wood is unfinished laminate. Not really my thing but think I might as well get one. What is this extractor issue? Before, during or after these were put out?