Has any body seen or used an AyA built double rifle. Their shotguns are very solid and well made (I have three of them already - a Coral, and two No3s).

I suspect they are not cheap - their best sidelocks are not either, and even a basic boxlock now retails for a few thousand. They do one version with a demiblock and another with a monoblock.

http://www.aya-fineguns.com/product/aya-express-r-demiblock/