Happy 2022,
Picked up a used OZ9 for $1k at LGS thinking "hey that's an $1,900 MSRP kit" (it came with the Comp V2) then I found this thread.
Opened it up to see the copper goop fully intact, and some carbon to clean up.
Looking forward to see if I have a unit that fires two rounds at once, snaps firing pins, breaks barrel lugs, breaks slide releases, FTEs, or shoot flawlessly.