when you get it strip the chi com grease off get non-chlorinated brake cleaner and then do your usual oiling etc i personally use rem oil, also make sure you get the oil out of the bolt as the free floating firing pins can stick i soaked mine in diesel over night to be sure everything was out then brake cleaned it, might be over the top but safety first, did the same with my sks, didn't oil it just used rem oil as it dry and leaves a teflon lubricate behind enough to suffice for the bolt as oil picks up crud and your back where you started, then lastly keep an eye out in the 2nds gun stocks on boyds and grab a walnut stock for an M1A makes a world of difference the Chinese wood stocks are nasty.
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