Valken Tactical's MIL-DOT Variable Zoom scope is an excellent addition to most AR platforms for players looking to take out the opposition at even the most engagement distances. The CR2032-powered Red/Green illumination allows for an easily viewed MIL-DOT reticle even in low light conditions. The MIL-DOT reticle system allows for easy on the fly windage and elevation adjustments. Built from a 1 piece metal tube, nitrogen-charged and sealed with o-rings to be fog-proof, this scope is extremely durable. With 4.5-5" eye relief combined with the elevated and offset scope mount the scope is easily used with multiple types of face protection such as lower mesh masks.