I have a Colt Comp H-Bar( My first AR) with a PRS, YHM Diamond free float, Ergo2 grip and a SpectreDR. I will never in my life sell this rifle. I can cover a 3 shot grouping at 100yds with a dime.
Not knocking Norcs or other cost effective brands as I want one myself as a PDW or carbine. For my first AR (owned it for about 3 years now) it is still by far the best rig I've shot.