Barska 3-9x40 IR Contour Scope, Rubber Armored: * Magnification: 3-9x * Objective lens: 40mm * Reticle: 4A, Mil-plex IR * Waterproof * Fogproof * Exit pupil: 4.4-13.3mm * Field of view (ft at 100 yds): 12.5-37.7 * Adjustment knob: windage and elevation adj, BDC (bullet drop compensation) and side mounted rheostat * Includes attached flip-up scope caps, set of Weaver-style rings, battery and lens cloth