Very disappointed. Set up was ridiculous in that the instructions and how to diagrams were terribly vague or non existent and were not for this sight's design. Was instructed to remove screws to take off battery compartment only to find out the compartment could not be removed that way. A simple lever was in place to open the battery compartment, doh! Now water proof seal could be compromised. In addition the protective case was wrongly matched to the sight. The case I received is cylindrical in shape while the sight is more or less block form, does not fit. Zero quality control of the packaged product. Will my sight hold up under rigorous conditions? Don't know. Not something I want to trust my life to. I recommend this item for airsoft only, lol.
Pros: Design has potential
Cons: Poor to set up, instructions irrelevant, protective case was wrong.
This review was written in the old system and had content requirements that are different than reviews written today.