FX Crown extension bridge hunt

Can anyone point me in the right direction to a slick extension bridge like this one for a FX Crown?
I don't believe in putting a support for a bipod on the bottle but this method I can live with but can't find it online, sure its a Euro manufacture
Contacted broekzwans that posted it back in 2018 but no answer yet because he's in the Netherlands asleep for now I'm sure.
But maybe you know of a setup that connects to the stock and lightly supports the bottle like the picture
Thanks
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