unfortunatly, I sold my AR15 last year it was a bad az gun. It was a DPMS but I had to use bushmaster extractor parts, because dpms used cheap parts that didn't last I changed the extractor, the plunger and spring after 200 rounds went down the barrel.
if I wanted a sniper rifle this is what I'd want
http://www.tactical-life.com/online/...actical-rifle/
I'm just not sure about how to get ammo for it!
better yet I'd probably stick with a .308