This thing is built like a tank and should take any abuse you throw at it. Most importantly it has the rectangular FOV that matches the EOTech red dot sights...this is a big deal...you have a much larger FOV and due to this, much quicker target acquisition. I haven't seen any other magnifiers with the rectangular FOV. This one has been discontinued, so get it while you can.
Pros: Durability, clarity, FOV
Cons: Weight?
This review was written in the old system and had content requirements that are different than reviews written today.