the reference for the "Trijicon RMR - Review of the TSD Glock" under "Gun Product and Reviews" which suggests visiting "One Source Tactical - Advanced Combat Glock" is, uh, gone.....why keep it if it's not available "to visit" ?
I have the RMR RM04 7.0 MOA on my M&P40L C.O.R.E. with a TLR-1. Got it dialed in while benched, holds about a 3 to 4 inch group at 25 yards. And I was able to get on paper at 50 and 100 yards shooting offhand. So far held zero through 200 rounds, it's VERY durable, and worth the money.