The BUCKLINE series is designed for hunters in pursuit of whitetail, hogs, and other medium to large game. Offering practicality and and affordable price point to accompany the features deer hunters know and trust. Water-resistant/fog-proof, nitrogen gas-filled Fully-coated lenses provide maximum brightness, clarity and contrast Removable lens caps included Coin-style windage and elevation adjustment under screw-down caps Generous eye relief Durable leaf-spring for windage and elevation adjustments Durable, scratch-resistant, non-reflective matte finish Bullet Drop Compensating reticle for calculating holdover at longer ranges One-piece tube made of aircraft quality aluminum