I would like to get some input on the best scope to put on my RRA AR1277. I have been looking at both Leupold and Nikon. Specifically the Leupold Mark AR - model #67170 vs. Nikon M-223 - model #8485. I am not dead set on either of these but after looking around they seem to be pretty nice for up close and mid range shooting which is what I am looking for. If anyone has an opinion I would love to hear it. Thanks in advance!