Conversion barrel for a Glock 23

[Carniemedic]

Has anyone used a 9mm conversion barrel in their gen 4 Glock 23, other than the mags what else do I need to change i.e. ejector, extractor, or spring? What are the cons if any doing this type of caliber flip flop?

[SERT103]

If you are just using the 9mm barrel for the range and .40 for carry, most get away with just changing the barrrel. If you are going to convert it as a full time 9mm for range and carry, it's recommended that you change out the ejector, extractor (including spring loaded bearing), and possibly the firing pin.