Good morning, I finally have a jsar that has been returned to military spec after finding a buttplate, bayonet lug, front sight which mine was grounded down, and some more small odds and ends to make this thing whole. Thanks to mr. Scott, Artr, rifleman1, dhazel74 and brian  for supplying  the requested parts. Yall made a world of difference.    My serial number is 4727 which was slightly sporterized I'm assuming by Winfield and had a ground down front sight. Any information on its production would be great and I will add it to the rifle history as I do with all my other military surplus. I'll finally post some pics of it when I get it back together. Long process to find parts and strip the stock and stain it back to the deep red but well worth it.    Thanks again.