Peters of Peters-Stahl in Germany posted about the “only real silenced revolver in the world”.
He used a Model 625.
The entire cylinder is encompassed by a giant clamshell.
You may remember his older PSDR.
Not sure why they are using that Tasco red dot but I suspect it may have to do with what German SWAT usually wears. Their helmets and face shields often require workarounds. Look at the folding stock on this new PDSR. It is designed to reach under the face shield so the shooter can shoulder this weapon.
I am curious how quiet this really is. I want to think it would just be a click of the hammer fall and a small puff out of the muzzle.