well I just ordered the Dominator 2 I was totally confused because I thought my Operator 2 came with it, turns out mine came with the stand alone Rear iron sight, My bad, when I saw the sight I assumed I was good to go. Now I know.
I'm assuming when I get the Dom 2 I'll have to head to the range and zero out everything again.
Oh well, not like I don't enjoy shooting my weapon just another excuse to be at the range
thanks for your help