Chogokin
Autocross Champion
I dont think you need to change extractors... I know lots of people who swap 9mm/40 cal barrels. I dont think you need to swap mags - but, it's probably not a bad idea.
my dad has a lone wolf conversion barrel for his 23 and it works flawlessly. As mentioned you can run 9mm through.40 mags, but I wouldn’t do it in a defensive situation.
Cool thanks! I'll probably get a couple Magpul G19 mags. Looking at the Blacklist barrel.
I asked about the extractor is because some people say that the G23 extractor will send the 9mm casing straight up instead of out to the side.