This Leupold VX-3L 3.5-10x50mm scope features the Custom Dial System, Xtended twilight lens system, DiamondCoat 2, Argon/Krypton waterproofing, a generous eyebox, blackended lens edges, super fast-focus eyepiece, 3:1 zoom ratio, ballistic aiming system, motion sensor technology, and tacticle power indicator with range estimation.