Hi Pony, Fergus,
Thanks for taking the time to reply. Please put up with this rookie. I had it mounted on what I would consider the receiver, pictures below. I'm not sure I know what a tang is. I had to file the foot of the peep sight to fit the dovetail slot.
Question- is it just downward pressure from the sight "body" that holds the stepped mount to the "receiver"? If so, I was going to bend it some as it is a little loose. Can I bend the sight without breaking it ?
Thanks again Pards and be well- BobbyF