[KOZ45]

I know this is an H&K Forum, but I have a Benelli shotgun with H&K markings

I believe what I have is a Benelli Montefeltro Super 90 12G shotgun

However, the H&K markings throw me off

I have two barrels, with AT (1988) and AZ (1990) date codes............I do not know which came with the shotgun originally

I'd love to find a serial number breakdown for the receiver