I bought two of the Leupold AR scopes, a 1.5x-4x and a 3x-9x and mounted them with the Leupold AR mounts on two Colt ARs. These scopes work very well and the adjustments are repeatable. I got plain duplex reticles. These simple reticles work well, perhaps better than a lot of the oddball and gadgetry reticles. If you ever want to sell or trade, the Leupold equipment holds value and is much easier to sell than lesser products.