I had an AR-10 before with an acog that I had to sell a while back. I want a setup like it again but only want to spend around $1500 for the rifle. What is the best option? AR-10 (kinda worried since their site shows 2 moa+), RRA, DPMS oR some other. Cabelas seems to have a ton of DPMS, but I have heard they have quality issues. What say y'all?