Here is a burris fast fire III and a EGW mount that goes in the dove tail .
That doesn't look good. Surely functional. Better to get the Trijicon or Holosun. I got my 80% slide with the rmr cut. Thinking it was an industry standard. But, then as I waded into the RD madness. I learned that there are like 3 prevailing patterns.
What does not look good?? It shoots great . It was a solution when I was having trouble seeing the front sight.
To me it looks like a Trijicon or Holosun . But i am not all about pritty more about function.
I dont know of another way to mount it lower on a 1911.