I've owned dozens of AR's, some "match grade" with Krieger barrels, Colt, Armalite, RRA, Spikes, BCM, Sabre Defense, Bushmaster, Green Mountain and numerous others. Oddly enough, my most accurate 5.56 barrels are plain old RRA chrome moly, a 16", followed by a 20". Not a fanboy of any particular brand, just stating my findings. The RRA's I have are older guns from their early days.
