Happy Fourth of July!
I am new to the M4 and to this forum but certainly not to firearms or red dot sights. I prefer a circle + dot for this application so I have boiled down my choices to the Trijicon RMR HD or MRO. Would anyone be kind enough to please share your thoughts? Also, I prefer not to co-witness with the irons so your assistance with a replacement for the factory pic rail would be great, unless you recommend I mount directly to the pic rail.
Thank you very much I would be grateful for anyone's guidance.Ron