We have a long history of manufacturing rugged and reliable riflescopes that outperform and outlast everything else on the battlefield and in competition. We used that heritage to create an extremely versatile line of tactical scopes for the shooter looking to upgrade every long gun in their safe. The Mark 3HD(TM) 1.5-4x20mm provides a wide field of view, while also allowing for precise, close to mid-range shots.Specifications and Features: Tube: 30mm Motion Sensor Technology (MST): Yes Battery Type: Battery Type: CR2032 Magnification Max: 4 Magnification Min: 1.5 Elevation Adjustment Range (MOA): 115 Windage Adjustment Range (MOA): 115