As new, mounted on my rifle, then went with a Leupold 2x7 optic, so this sight came off and is for sale. This is the detachable model with the windage and elevation adjustable A2 mil-spec sights. Sight has two steel thumb type nuts that secure sight on flattop reciever. Sight is a fixed up position type. Correct higth for co-witness. As new, first $55 owns it, price includes shipping. Paypal +3% for fee or money order accepted. Sold to Adam.