I snagged a new G17 Gen 5 slide assembly and dropped in on my G45 frame (instead of buying a new G17).
I'm sure I'm not the first to do this. I'm waiting back to hear from Lone Wolf to see if their Gen 4 adapter will work to fix the gap.
I haven't run live ammo through it yet, but it feeds, extracts, ejects and cycles quite smoothly.
Has anyone here tried this? If so, have you run into any issues?