Immediate impact on my previous extraction problems - Faxon Firearms Valkyrie Bolt Carrier Nitrided 1

Bought as a replacement for a suspected bad 7.62x39 bolt I had in place. It made an immediate improvement on the extraction issues I was having. The extractor was good on the old one, but regardless of the upgrades I tried to improve my old one, it was only working intermittently at best. I still have extraction issues every once a in a while, but I believe it to be the chamber needing to be polished. It is shooting cheap steel cases ammo much better now. I only gave 4 stars due to the short time and round count I have with it.