Vortex red dot sight crossfire

COUPLE SCRATCHES ON THE TOP • 11 brightness settings • Reliable performance in all conditions Nitrogen purged has purged and 0ring sealed delivering waterproof fog proof performance Shockproof constructed to withstand high levels of recoil and impact Fully multi coated anti reflective lens coatings increased light transmission for greater clarity -low glare matte black anodize -versatile multi high mount system -2night vision compatible setting -11illumination system -parallax free