I have a 32” k32 flat rib barrel F/S. It is choked IM on the bottom and full on the top. I have no way of checking this but it seems unmolested. The bottom barrel is ported. Blueing is good, has some rash on the bottom. If anyone needs additional pics or questions let me know. 2,200 shipped to your door in the lower 48.
Looks just like my model 32 barrel. Did not know k80 barrels used screws to hold ejectors in? Mod 32 did.