The Leupold Mark 4HD 6-24x52mm M5C3 Riflescope delivers professional-grade optical engineering optimized for elite tactical shooters, extreme long-range competitors, and backcountry hunters. Built on a rigid 34mm maintube, it features low-profile M5C3 tactical dials that yield crisp 0.1 MIL adjustments across three full revolutions alongside a push-button ZeroLock system to guard against accidental movement. The first focal plane illuminated PR3-MIL reticle keeps your milling data scale true across the entire 6x to 24x magnification envelope. Equipped with Leupold’s Professional-Grade Optical System, it delivers industry-leading glare control and outstanding resolution in minimal ambient light. Complete with an integrated throw lever, side focus parallax correction down to 25 yards, and Motion Sensor Technology (MST) to preserve battery longevity, this optic is completely waterproof, fogproof, and shockproof. Leupold Mark 4HD 34mm 6-24x52mm Illuminated M5C3 Side Focus FFP PR3-MIL Riflescope 188843