he Vortex Crossfire II 6-24×50 AO rifle scope has fully multi coated lenses with anti reflective coatings. The long eye relief on this Vortex scope and fast focus ocular lens makes this rifle scope such an ease to use. A Vortex Crossfire 2 is made from a 30mm tube body and has resettable MOA turrets. This Vortex Crossfire has a 5omm objective lens and will gather a large amount of light giving the user a bright and clear image. A hard anodized single piece, aircraft grade aluminum tube is nitrogen purged and O-ring sealed. This gives this Vortex scope a waterproof and fog proof performance.