Sounds like you bought one of the ZH made imports made for AA, Tristar or BSA, here's an example

https://www.gunsamerica.com/956971846/TRI-STAR-BRITTANY-CLASSIC-II-28GA-SXS.htm

Does it look like the frame is gauge specific to you? Not to me, but what do I know.

As to being blind....look in the mirror.

I know you got the definition for a Best Gun from Hallowell & Co, but you had to change pretentious to pompous. Seems like your being a bit pompous, especially when it comes to ALL Spanish makers.

I'm done with this.

Gregory J. Westberg
MSG, USA
Ret