This Leupold FX-II 4x33mm scope with Wide Duplex reticle features mutlicoat 4, xtended twilight lens system, DiamondCoat 2, 2nd generation argon/krypton waterproofing, blackened lens edges, super fast-focus eyepiece, lockable fast-focus eyepiece, classic/standard lockable eyepiece, ballistic aiming system, adjustable objective, proprietary nitrogen fill process, and 6061-T6 aircraft quality aluminum.