Equip your rifle with the Mark 4HD, a next-level scope that takes the proven performance of its predecessors and adds a slimmer, more agile main tube. Designed for both enthusiasts and experts, it offers excellent optical clarity and weight savings. Choose from five magnification ranges, featuring a three-turn elevation dial and precise ZeroLock windage adjustment for stable, long-distance accuracy. Like all Leupold scopes, it's built waterproof, fog-proof and backed by a lifetime warranty. The 4:1 zoom ratio offers an ideal balance of weight and versatility, providing magnification options of 1-4.5, 2.5-10, 4.5-18, 6-24, and 8-32 The 25 yd side focus feature enables parallax adjustment from 25 yd to infinity, ensuring a sharp, stable reticle across nearly all distances Leupold's professional-grade optical system ensures superior light transmission, exceptional glare reduction, and the high-resolution and clarity required by professionals Leupold's Custom Dial System (CDS) allows precise turret customization to match specific ballistics and environmental conditions, range the target, adjust the dial, and aim accurately Low-profile dials on select models offer 30 MIL of adjustment across 3 revolutions with 0.1 MIL clicks, visual/tactile indicators and ZeroLock ensure precise zeroing In first focal plane (FFP) scopes, the reticle scales with magnification, maintaining accuracy across settings, ideal for tactical use, range estimation, and hunting The ZeroLock system prevents unintentional dial adjustments by securing it in position, ensuring consistent and repeatable returns to the zero setting Leupold's advanced sealing and gas technologies ensure optics remain moisture-free and clear, enduring extreme temperatures, elevation changes, and shocks