The Trushot Scope Series is waterproof fogproof and nitrogen gasfilled. It also has a duplex reticle generous eye relief fullycoated lenses for maximum brightness clarity and contrast. It also features rubber eyeguard removable lens caps coinstyle 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 with a durable scratchresistant nonreflective matte finish. This model includes rings for mounting.This model has a 39x magnification with a 40mm objective.