As soon as I got the G48 home a few days back, it was slide switcharoonie time.
Yes, the G48 slide fits right onto the G43 frame. I am even going to fire it that way, once I can manage to get to the range.
Glockmeister's sale this week resulted in an order for TruGlo sights and I've ordered the adapter to fit the skinny slides to my sight pushing tool.
The G48 trigger is great. I guess it is the Gen 5 version and it is noticeable better than the triggers on my Gen 3 and Gen 4 Glocks.
Glockmeister is taking pre-orders for the magazines, although the pre-order price at Brownells is $2 lower. I haven't seen anybody online who actually has them in stock yet. My pistol was not one of the police purchase ones and it came with 2 mags. Maybe the LEO pistols will have more, I don't know.