The Trushot Scope Series is waterproof, fog-proof, and nitrogen gas-filled. It also has a duplex reticle, generous eye relief, fully-coated lenses for maximum brightness, clarity and contrast. It also features rubber eye-guard removable lens caps, coin-style windage and elevation adjustment under screw down caps, durable leaf spring for windage and elevation adjustments, a one piece tube made of aircraft quality aluminum, and durable, scratch-resistant, non-reflective matte finish. RSR -