Ready your rifles with a versatile Mark 4HD. We 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 design will get the job done at the range or in the field. – 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 Ratio – Professional-Grade Optical System – Motion Sensor Technology (MST) – Waterproof Fogproof & Shockproof – M1C3 Adjustments – 25-Yard Side Focus – Electronic Reticle Level – Custom Dial Compatible – Illuminated – Nightvision Compatible Illumination – First Focal Plane – Specifications – Battery Type CR2032 – BDC Dial Included No – Daylight Bright Illumination Yes – Custom Dial System (CDS) No – Elevation Adjustment Type M1C3 – Guard-ion Lens Coating No – Locking Dial Yes – Magnification Type Variable – Revolution Indicator Yes – Reticle Illum. FFP PR-1MOA – Reticle Type Illuminated – Adjustable Objective No – Side Focus Yes – Switch Type Push Button – Windage Adjustment Type Capped – Weight (oz) 27 – Elevation Adjustment Value per Click 1/4MOA – Elevation Adjustment Range (MOA) 125 – Elevation Adjustment Range (MIL) 36 – Elevation Adjustment Range (cm @ 100m) 360 – Elevation Adjustment Per Revolution 25 MOA – Elevation Dial Travel Limit 71.5MOA – Windage Adjustment Value per Click 1/4MOA – Windage Adjustment Range (MOA) 65 – Windage Adjustment Range (MIL) 18 – Windage Adjustment Range (cm @ 100m) 180 – Windage Adjustment Per Revolution 24 MOA – Magnification Max 18 – Magnification Min 4.5 – Objective Lens Diameter (mm) 52 – Linear FOV Low Mag (ft@100yds) 23.1 – Linear FOV High Mag (ft@100yds) 5.2 – Angular FOV Low Mag (Degrees) 4.4 – Angular FOV High Mag (Degrees) 1 – Eye Relief Low Mag (in) 3.6 – Eye Relief High Mag (in) 3.9 – Minimum Parallax-Free Distance (yd) 25 – Battery Life (hr) Low Intensity 1600 – Battery Life (hr) Medium Intensity 1000 – Battery Life (hr) High Intensity 300 – Number of Illum Settings 8