<p>Description:</p> <p>11 brightness adjustment red dot sight.</p> <p>Rugged all metal construction</p> <p>Multi coated optical lens</p> <p>Precision brightness, windage and elevation adjustments</p> <p>Suitable for any lighting conditions</p> <p>Integrated mount for 20mm and 11mm rails</p> <p> Magnification: 1×</p> <p>Objective Lens Diameter(mm): 30</p> <p>Exit Pupil Range(mm): 30</p> <p>Field of View @100 Yds: 68</p> <p>Optimum Eye Relief (in): UNLIMITED</p> <p>Parallax Setting: 50 yds.</p> <p>Size:As picture</p> <p>Weight:</p> <p>Fits all 20mm Picatinny And 11mm Weaver Rail.</p> <p>  Power by: CR2032 Battery (Not included)    </p> <p>Due to shipping regulation, all batteries will be removed before Shipping. </p>