A Light 20 mag, or Light 20 Belgium is one heck of a shotgun.
Very very light - 5 shots…
If you shoot a flat rib field gun, it’s hard to improve on it.
I shoot high rib because I am Omni-ocular so my dominant eye can shift and using a high rib helps counter that…
Plus I like my pattern high because I like watching the bird above the bead so I can adjust to dives and dips fast so for me I use a Benelli M2 because it has a high rib, and shims to let me adjust the stock drop to pattern where I like it…
But if I shot standard flat surface ribs (the rib on a A5 matches the Height of the receiver humpback) I’d be using a light 20 mag…
Art’s Gunshop is your huckleberry if you want a restored one….