I have a Glock 32 and a 19 and I was thinking about getting a .40 conversion barrel for the 32 and maybe getting rid of the 19 and buying a 9mm conversion barrel as well for the 32. will my 19 mags work in the 32 with 9mm barrel? how well do these conversion work? any accuracy or fitting problems? I assume these are just drop in parts? TIA for any info.