This Leupold FX-II 6x36mm scope with LR Duplex reticle features a mutlicoat 4, xtended twilight system, Diamond Coat 2, 2nd generation argon/krypton waterproofing, blackened lens edges, super fast-focus eyepiece, lockable fast-focus eyepiece, ballistic aiming system, adjustable objective, proprietary nitrogen fill process, and 6061-T6 aircraft quality aluminum.