Barska 3.5-10x50 IR P4 Ridgeline Scope: * Magnification: 3.5x-10x * Objective lens: 50mm * Waterproof * Fogproof * Reticle: IR p4 * Exit pupil: 5mm-14.28mm * Optical coating fully multi-coated optics * Field of view (ft at 100 yds): 28.3/9.5@3.5x * Eye relief: 4.56-4.33 * Click value: 1/4/2010 * Adjustment knob: adj. rheostat settings, external locking windage and elevation adjustments * Tube diameter: 1" * Includes flip up scope caps, battery and lens cloth