Anyone seen one of these...?

Not yet.
Still in the shop at the same price.
Still playing around with the idea.
Still don't know yet.
Do I need it?
Don't know.

Could be time try some of your bargaining skills and get a good deal
I am sure you would give it a good home.
Think it has a neat rear end that I have never seen on one before.

Love the idea of it but do I have a real use for it?
If I had multiple barrels/chokes maybe.
Ideas welcome?

Can't say paid too much attention to barrel wall thickness at the muzzle end but pretty sure there be enough meat, you could get Briley S1 or S2 thin wall chokes to work. I did this and work fine on a superposed O/U barrel and their walls are thinner. That would certainly give you all options of trap, skeet or sporting. Think there be a gunsmith in NZ doing Brileys and screwing barrels for sure. Also only 1barrel to do.