I have a real nice Gen3 Glock 23, the TALO edition with the EXO nickel boron finish to the slide and barrel. I have been looking exhaustively for a KKM .40 to 9mm conversion barrel. I have yet to find any place that has one in stock. I would love to pick up a factory G32 barrel, so I can basically have 3 different caliber selctions in one pistol. In fact, I have had such a flawless experience with the KKM barrel in my G30, that it the only company I am wanting to go through. If I were to pop in a 9mm extractor and ejector in my G23, then I think that it would be a realistic, reliable option to carry for self defense if I wanted to. Anyway, If anyone knows of a place that has a KKM .40 to 9mm conversion barrel in stock and ready to ship, please send me their information and price; also, if anyone knows of a factory G32 barrel for a good price, I would greatly appreciate that information as well.