Was always wondering sense I had got my 45 and it runs the 19 slide. I’ve tried different gen slides on it and that worked so it always crossed my mind what about a Glock 45 with a 23 slide making it like a short slide 22. And yes it actually works I tested this out today. A glock 23 slide will go right on seeing that they use the same locking block would just have to use a glock 22s magazine.