I am an avid shooter and this EO tech 556 is easy to use, has a great field of view, and is VERY fast. I am very impressed. I have not needed to mess with the zero for months and do not plan to. This does not need to be babied like other optics that I have used. My only con would be that it does run out of battery sooner than expected. This is only when I store the batteries in the optic tough. I can easily use it for presicion shooting if need be because the center dot is 1 MOA. The outer ring is great for CQB shooting in that it allows your eye to lock on to the recticle faster than trying to find the small dot under pressure. This is a huge advantage over optics with only a single dot. Overall this is a great optic and money well spent!
Pros: Accurate, Holds zero, very versitile
Cons: Battery Life could be better
This review was written in the old system and had content requirements that are different than reviews written today.