I can not say enough good things about this sight. I wanted an acog for the longest time but for CQB I did not choose it. The eotech I have used for the past year...and when I saw this I was like how come I didnt think of it.
I am a left handed shooter so I choose to mount it so it flips to the left...the only draw back is that it does interfer with me pulling the charging handle, when it is flipped to the left....
I am currenlty shopping around for a left handed charging handle....tactical preferably that would resolve this problem....
My other concern was that a back up flip up iron sight would not fit....I have not mounted one yet but I am told by a buddy that also bought this sight that it does fit......