I use a 2” twelve in the beginning of the season. It weighs 5 lbs 8 3/4 oz. A great gun to carry and for me the 12 gauge gun works better than a 20 gauge. I hunt over setters so I’m not taking very long shots. The only issue with the gun is finding cartridges. RST is making them again they had a long hiatus when they couldn’t find components. The British 2” cartridges are little punchy shooting them through a light gun. Also, check barrel wall thickness as some were made extremely thin. The Arrieta 2” guns were made close to 6 lbs so you might want to find a Brit light 2 1/2” gun.
An H&H 2” gun with a limit of KS roosters. Of course the setters helped quite a bit.
Ken