bought an AR bolt recently here for 5.45, turns out I couldn't find a barrel to finish my build so my loss is your gain today...including the lengthened or 'enhanced' firing pin it came with for those Berdan primers on x39 cartridges, and a mil-spec cam pin
pretty rare nowadays from what I understand, may entertain trades only for a galil-style 5.45 bolt.
price is firm but is for all of it as you see shipped, click 'place offer' if you are interested, thanks for looking..