This Leupold FX-3 6x42mm scope with LR Duplex reticle features multicoat 4, xtended twilight lens system, DiamondCoat 2, 2nd generation argon/krypton waterproofing, blackened lens edges, super fast-focus eyepiece, ballistic aiming system, standard multicoat, adjustable objective, proprietary nitrogen fill process, and 6061-T6 aircraft quality aluminum.