This Leupold VX-6 3-18x44mm CDS-ZL scope with FireDot Wind-Plex reticle features a quantum optical system, xtended twilight lens system, DiamondCoat2, 2nd generation argon/krypton waterproofing, lead free lenses, generous eyebox, FireDot illumination, pop-up rezero adjustments, blackened lens edges, twin bias spring erector system, extreme fast-focus eyepiece, CDS custom dial system, and motion sensor technology.