Ready your rifles with a versatile Leupold Mark 4HD. Leupold took the legendary performance of its predecessors and gave it a slimmer maintube that's been packed full of professional-grade features. Whether you're a dedicated enthusiast or a seasoned expert, the Mark 4HD's optical clarity and lightweight.The Mark 4HD series features five magnification ranges, providing you with an accurate and reliable option for close-quarter engagements, long-range dominance, and everything in between. They're available with a three-turn elevation dial for unmatched confidence at extreme distances, a precise ZeroLock windage adjustment that won't budge when knocked around, and a side focus that delivers tack-sharp images as close as 25 yards. And like all Leupold riflescopes, they're waterproof, fogproof, and backed by our lifetime guarantee.4:1 Zoom RatioProfessional-grade Optical SystemPrecision Side Focus1/10 Mil Or 1/4 Moa AdjustmentsM1C3 Zerolock Adjustment DialsMotion Sensor Technology (MST)Electronic Reticle LevelRemovable Throw LeverFirst Focal Plane ReticleWaterproof, Fogproof, & Shockproof30mm Tube