Now that I have a Glock 22 I was thinking of getting a 9mm bbl for it. I've been offered a Glock 17 bbl at a really good price but am not sure if the barrels are interchangeble between these two models. Does anyone know if this will work or am I better off getting a g22 conversion bbl? I don't want to try it and get a KB. Thanks for the advise.