Recently purchased an Aztec Emerald scope when I saw it listed on sale at Krale Sport. From the reviews I was really excited. When I received it I was really impressed with the look of the scope and the packaging. But when I mounted to my gun I was in for a big problem. The windage and elevation turrets worked great, but the AO turret was almost impossible to move. I even returned to the owners manual to see if there was anything I had done wrong. I don't believe in forcing things, but with constant pressure the AO began to move, but there was no change when I looked through the scope. Or... the distance markings were so far off ( for example 100 yard mark focused at 10 yards) and continued to shift. Rotation was sometimes smooth and sometimes rough. Sadly I loved the glass and especially the reticle, but the defective AO made the scope unuseable. At first I emailed Aztec to get a replacement under their "Golden Guarantee", but never got a response. Krale was kind enough to send me a return barcode to return to them. Before final packaging I tried the scope once more and the AO would only move about half of its mark rotation. Disappointed, I returned to Krale. And guess what............................ Krale received, "tested" and said the scope was fine and asked if I wanted them to return to me. (it was their last one) I said a clear no and hoped they would not sell to someone else. I think they are going to give me a store credit for the money I spent. That works for me, but what's up. I don't know much about the mechanics of scopes, but I wondered if something had frozen in my scope. Perhaps some lubricant had jelled. I'm really disappointed, because I loved everything about the scope except the defect. Any idea about what was going on?