Pick up a Mark 5HD? and you?ll feel the difference: it?s up to 20 ounces lighter than other scopes in its class. Get behind one and you?ll see the difference, from the superior edge-to-edge clarity and extreme low-light performance, to the versatility of the Combat Competition Hunter reticle. With three revolutions of elevation adjustment, the Mark 5HD was built to max out the performance of the latest long-range rifles and ammo. Ergonomically designed with more tactile, audible click adjustments, larger numbers, and a high-speed throw lever so you can put accurate fire downrange faster.Front Focal Illuminated Tremor 3 Reticle Designed by Horus Vision with serious shooters in mind Utilizes a MIL based system Grid style reticle provides precise aiming points for bullet drop compensation and wind correction Centralized dots at crosshair intersections for refined aiming points Chevron MIL markers measure 0.1 MILs for precise measurements Increases number of hold over dots over the Tremor2 Includes rapid ranging marks found on the H-59 reticle above the central horizontal line Open upper half of the reticle for observation and spotting Large number of aiming points provides excellent corrections for follow-up shot placement Numbered lines makes for quick line identification Front focal reticles enables full function of the holdovers throughout the whole magnification range 100% Waterproof and Fogproof 2nd Generation Argon/Krypton Waterproofing 35mm Maintube 5:1 Zoom Ratio 6061-T6 Aircraft Quality Aluminum Dial Illumination Control Dual Use European Style Fast-Focus Eyepiece Front Focal Plane (FFP) Generous Eyebox M5C3 ZeroLock Adjustments Throw Lever Twilight Max HD Light Management System 1/10th MIL Click Adjustment Flip Open Lens Covers Side Focus Absolute waterproof and fogproof integrity ? each is ready for a lifetime in the field, in all conditions.