For use when primary optic sight fails or tactical situation make iron sights preferable. Robust and easy to use with eight range setting. (200, 300, 350, 400, 450, 500, 550, & 600 meters). Buyer pays shipping. Sight weighs 6 ounces packaged for shipment. Sight is in excellent+ used condition. $75.00 cash FTF Astoria, OR No trades.