I'm priced out but I just want to say that I have never seen another online forum where people step up like this all the time. Hell of a group of people on the ODT!
I have this rear sight if needed:
http://www.midwayusa.com/product/235414/leapers-utg-model-4-15-match-grade-detachable-rear-sight-assembly-with-integral-picatinny-style-mount-ar-15-matte