If I can see the dot, it doesn't need cleaning. More optics are damaged by over-cleaning than dirt.
If I can see the dot, it doesn't need cleaning. More optics are damaged by over-cleaning than dirt.
I haven't "cleaned" an RMR yet. Keep a can of air to blow dust/lint out and carry on.
Some things I do with my RMR from my two years of using them
•use brand new, clean screws each time you mount the optic
•witness mark the mounting screws once you torque them to spec
•witness mark the windage and elevation knobs once you finish verifying zero
I use this paint pen, it tends to rub off on the windage knob since it rides against my cover garment
•cat crap/scope dope (same formula) on the inside and outside of the optic lens and some on the emitter lens
You can use a q tip behind a microfiber cloth to get to the emitter
•use a Duracell battery
Duracell batteries are more consistent in size which is beneficial for preventing the battery from losing contact with the connectors of the optic, I even put the "baby sticker" on the battery to give it less space to potentially wiggle out even on my Type 2 RMR. Some people put electrical tape, a thin piece of cardboard etc
People think optics will render your gun useless if it gets fogged up, dies or gets water on the emitter. It's important to learn various optic failure techniques such as the guillotine method or occluded eye shooting should the optic window become blocked. I try my best to routinely treat my optics with lens cleaner but I am not under the illusion that you cannot shoot if the optic gets blocked. BJ Norris iirc shoots his optics even with a bunch of carbon residue on the window.