Do you have to run a Burris red dot with the speed bead mount? Or could you use say a tru glo
I think you have to use the Fastfire...otherwise I'd have a trijicon on my speedbead for sure!
As long as the footprint of the mounting surface is the same then you can use whatever sight you want. The Truglo is not the same IIRC but I believe the Doctor is the same. I thought the Trijicon was the same but I'm not real sure about that one.
Do you happen to know the dimensions of the mounting plate?