Rm02 and m&p c.o.r.e. - Trijicon ACOG Mount RM02 LED Red Dot Sight w/ MOA Dot Reticle

The Trijicon RMR RM02 is a very high quality optic and an excellent choice to mount on a S&W M&P C.O.R.E. pistol. This optic will mount on a C.O.R.E. platform with mounting plate "type 1" and screws provided by Trijicon with your purchase; it is a very simple procedure. The optic must be removed to change the battery; the battery is expected to last a year. The optic will cowitness very well obscuring minimal optical sight picture. The optic has a built in gasket seal to protect the electronics. The optic base, mounting plate provided with the C.O.R.E. pistol, and pistol slide form a solid platform that appears to maintain a good seal to the optics base and electronics. I tried the RM63 sealing plate but removed it deciding that the seal is adequately maintained, that the cowitness is better, and that the optic seats more solidly without the sealing plate. The 6.5 MOA dot is easy to pick up and is very crisp; this is a good MOA size choice for defensive application. Under fluorescent light the dot appears slightly flared and grainy but not so much as to impede use significantly; I understand this is due to the optics sensor responding to the pulse frequency of this type of lighting. In low to no light the dot dims accordingly, remaining easy to pick up and crisp. The optic responds very quickly to changes in environmental light. A flashlight or weapon mounted light will render the dot unobservable; I consider this to be the only functional weakness and it appears to be shared with all sights using this technology. Adjustment is simple and performed by turning subdued elevation and windage adjusters, following directional indicators on the optic. Zero appears to maintain well, I have noticed no drift in the point of impact. The lens cleans easily with water and a soft cloth, a lens pen is usable on the front but is difficult/impossible to completly use on the rear due to the angle of access needed. I find the dot slower to acquire for the first shot compared to iron sights, but follow up shots feel much more easy and rapid to produce; once the dot is aquired it is easy to maintain. I am completely satisfied with this product for this application.