I bought a 6390RDS for a G19/x300 because I’m optimistic that our chief will shortly be allowing us to carry personally owned Glocks. Figured I better grab one when I found it (DSG Arms). It came in and I figured I’d see if it fit a P10c/RMSc/x300 combo.
It does. Perfectly. I’ve heard rumors about that combo fitting different RDS holsters, but this one I can confirm.