"CHOOSE THE KIT YOU WANT:
CONVERSION TO GLOCK 22"

So are they saying these kits convert a Glock 17 to a Glock 22? I though it could only be done larger width diameter caliber to smaller width diameter caliber....
You can put a G17 barrel in a G22 and it will "work" but it's sloppy and damaging so do it to someone else's pistol ;)