I recently purchased a hellcat rdp. Mounted a JP Enterprises red dot and installed a Apex Tactical trigger in it. I made a serious effort to achieve combat accuracy with it. Here again it's probably just me, was unable to do so. To make a long story short I traded it in for an echelon. Mounted a Trijicon 5 Moa SRO red dot. So far, after about 300 rounds, I'm impressed. I plan to shoot a few hundred more rounds before adding it to daily carry. Adapting to red dot sights has taken quite awhile. I have old eyes, not seeing the front sight clear enough is why Im transitioning to red dots.