So, I have an Extar EP-9 (haven't even shot it yet) with a Holosun RDS. Because of how high the rail is on the EP-9, I am not using the AR riser. Because a RDS can fail, I want to be able to remove it fast. I found that Scalarworks builds thumb screw equipped quick disconnect AR risers. That's what I'm looking for, the thumb screw. The Scalarworks thumb screw won't work for a Holosun. Any ideas where to find something like this?