Thinking about finally getting a TA31-ECOS. Just curious how usable the RMR is on top of the ACOG.

What do y'all think about a 45 degree offset mount (rail mounted).

I like the idea of the RMR on top, just not sure if you can keep a cheekweld and still transition from ACOG to RMR.

And last but not least, is the Bobro mount everything it's cracked up to be or should I Larue or Geissele mount it? QD is cool, but won't really need it here.

I had an RMR on my ACOG. I didn't like changing my head position to see through it so I ended up just canting the rifle 45 degrees and the RMR would end up perfectly in front of my left eye while maintaining the same cheek weld. It worked out pretty well.

I ended up selling the RMR though. I never used it and honestly, the ACOG is all I need.

That's how i do it.  Works pretty well