So I have a nice Leupold AR scope but its not really practical for CQB any suggestions on a good CQB AR15 scope for my Troy Defense? I've been looking at the Mepro M21 but I think im a little ways off on in buying that do I am trying to get one in the 120 to 200 range. I also saw this nice dual scope looking thing I'll post a pic of I thought was kind of nifty