Finally figured how to post pictures of THUMPER 2-
It is a Merkel 500 NE and it opens a can of WHUP *SS on me with every shot!! "OUCH!!" Not a 577 or 600 or 4 bore but it works great for me.
And yes those are claw mounts present, but I doubt I will ever use a scope--- indeed,remaining conscious after shooting is always a priority!!