I realy hope that RRA fixed their problem that they gave to bushmaster, i really do, but the reality of the situation is that they are the third manufacture to attemp to use cheep FAL mags to feed the system. it doesnt work, the ar was not designed to fire from the center
at the moment there are two options armalite or dpms, there is no doubt about it, the DPMS is a better value and will do the same thing as the more expensive armalite. But the difffrence is in the customer service and liftime warrenty, personally i am willing to spend a few hundred dollars on a wepon knowing that if the bolt shits the bed next year, i can send it in a get it replaced inside of a week for no cost, will that happen, no, but it could.
for me armalite is like having AAA coverage, anytime I need anything they bend over backword to accomadate me.
hinestly you cant go wrong with either gun
here is my half MOA gun with US optics scope