My guess would be 19 for the general public and 22 or 23 for LEO. But I have no way of knowing that except by judging the number of G22 police traded that Bud's seems to always be getting.
Gun store fella just told me today, 9/18, that the G19 is the quickest selling when he can get them. And used ones fly off the shelf almost immediately.
Yeah, I've worked at two different gun stores and helped a friend out at a third, and at all three stores the G19 is by far the fastest-selling Glock, hands down.