The main problem is everyone puts too much importance in a sub MOA gun and not enough in the workings of the gun.
I'll take both. A sub moa gun and one that works 100% all the time. All of my AR15's fit that bill, except for my highest dollar AR (Noveske). It shoots a hair over moa with irons.. Besides, we know there are damn few guys that actually have/own solid sub moa AR rifles. There were only 8 guys that have proven that fact in the black rifle challenge here.
