I was sceptible of a knock off acog at first knowing that trigicon makes the original sight coming in at 1200 plus dollars which I didn’t want to spend for an 800 dollar ar15, but to my surprise it zeroed really quick, feels durable, looks good on my rifle. With that being said, only time will tell after being in storage and brought out from time to time to to shoot and test it, to keep it “ready”, will I be able to give a more accurate review. But so far, initially, I am very happy with it. I w...