James B., I would suggest if you send in for an addittional barrel you specify the twist you prefer and if you want and ejector OR extractor, there is no telling what they may have on hand at the factory and by specifying you will hopefully get the barrel style you want. Just because some here have received new guns with 1:9 twist and extractors does not mean your addittional barrel fitted at the factory will be that style, they may still have some of the original barrels on hand. It does not hurt to ask/specify....Good Luck....<><.... :grin: