I looked at the AyA 56. It would fit the bill. A new one is pricey, the used one at Fieldsport may have been made at at time when AyA was having metal hardening problems. I already have vintage pigeon guns, just wanted something modern. If I mentioned modifying a Mod 21 on this board, I'd get crucified, besides I'm not enthusiastic about their handling characteristics.

The only constant in life is change.