It most certainly does. There's a point of diminishing return but there is a night in day difference in say an H1/T1 and the Primary Arms micro or that backwards EoTech clone. Even Marshall from PA will admit this. I will say I run 2 PA Micros on lower use rifles and like them. You'll never see "actual stats" because there is a stark difference in end user. You won't see an 11B topping off his M4 w/ a Benchmark RDS. There's a reason. Just like the people who say there isn't a difference will likely never pass the threashold that seperates good and bad. That's why it's nice there are varying levels of quality. I really didn't want to spend $600 on a H1 for my .22 AR. The PA gets me close enough to not alter muscle memory.