A.R.M.S.® #15 Throw Lever Flattop Mount
12.9 MOA Triangle
The Reflex-II is sitting on a Knights RAS hand guard that sits at the same level as the receiver flat top picatinny rail. That allows me to mount the reflex anywhere between the rear of the receiver and the front sight base without changing my zero. It also co-witnesses the reflex reticule and the iron sights (removable carry handle) so they can be used together if you so desire.
Having the larger reticule helps when the sight is mounted forward over the hand guards as it is easier for my old eyes to see and quicker to pick up on.
I have it zeroed (50 yds) so that the center of the triangle covers 0 to approx 75 yards. The peak of the triangle covers from 100 yds on out.
Your mileage may vary according to your