I recently purchased a G23 gen4 and wanted the option to covert to 357sig and use as a carry gun. I have read many thread's that people have had no issues and replaced nothing but barrel. There were others that had feeding issues. i also read that the gen4 models have different magazine follower, trigger housing and extractor and different rear sight height! I really don't want to completely rebuild my G23. Will my gun be reliable to use as a carry gun with only the barrel and magazine followers replaced?