Burris 6.5-20 x 50mm Fullfield II Ballistic Mil-dot Rifle Scope Fullfield II variable power 6.5x-20x-50mm matte black ballistic mil-dot adjustable objective 1-piece tube construction, reinforced quad-seal gas seals and Hi-Lume Multi-coated lenses Water, fog and shockproof 1 inch tube, hunter turrets Forever warranty