I have a like new Midwest Industries SPLP (same plane low profile) buis for any M1913 rail. It is a great piece of equipment, but I just don't need it. I would like $80 shipped. Paypal ok + 3%. Here is some info and pics of the sight off of the MI website. Let me know if you want actual pics, but mine looks just like this one. Also comes with allen to put it on.
MI SPLP Buis