Multiple Layers of Anti-Reflective Coating maximize light transmission, brightness and contrast for an extremely bright sight picture.
Constructed of Aircraft-grade aluminum with Type-III hard anodizing surface finish for maximum strength-to-weight ratio and optimum ruggedness.
Positive-1/4-inch click adjustments get you zeroed in quicker and maintain your setting even with heavy recoil
O-ring sealed to prevent moisture from entering body and nitrogen purged for total reliability against thermal shock.
Shockproof construction shrugs off hard recoil and rugged use.
The Nikon 3-9x40 BDC Riflescope (16558) features fully multi-coated lenses to boost light transmission for dawn-to-dusk performance. 1/4 MOA adjustment turrets get you zeroed-in quickly and efficiently. The Spot On optimized BDC reticle makes accurate shots to 600 yards and beyond a real possibility. Built on a 1" tube, the Nikon 3-9x40 BDC Riflescope is waterproof, fog proof, and shockproof.