The Leupold 3-9x40 Mark AR Riflescope MilDot is ideal for those who use military type rifles, delivering high performance at a price that's right on target. The 3-9x40mm Mark AR Duplex Rifle Scope by Leupold has a 1/2 MOA T2 elevation adjustment that includes a pre-engraved bullet drop compensation (BDC) dial to match the ballistics of most 55 grain .223 Remington/5.56mm NATO loads. Long range shooting solutions have never been easier. If the target is at 500 yards, simply turn the dial to the "5" and squeeze the trigger. It's that easy. If you have a specific load you'd like to have matched, the Leupold Custom Shop can create additional dials for a nominal fee. Whether you shoot an AR15 platform or a bolt action, the Leupold MarkAR 3-9x 40mm Rifle-scope has it covered. The Multicoat 4 Lens System of this Leupold Riflescope delivers peak light transmission for superior brightness, edge-to-edge sharpness across the visual field, and optimal contrast. Completely waterproof and fog proof, the riflescope also features a classic lockable eyepiece and tactile power indicator. And to assure superior performance under the rigors of the field, Leupold 3-9x40 Mark AR Duplex / Mil Dot Riflescopes are rigorously tested under the most demanding conditions. No tactical hunter should go without bright, accurate, and dependable optics. Specifications: Retical MilDot Lens Coating: Multicoat 4 Lens System Adjustment Markings: 1/2 MOA elevation BDC1/2 MOA windage Maintube Diameter: 1" Special Features: 55 grain BDC dial Environmental Protection: Waterproof, Fog Proof Eyepiece Design: Classic Lockable Actual Magnification: 3.3-8.6 Linear Field of View(ft @ 100yd): 14.0 feet at high magnification,32.3 feet at low magnification Linear Field of View(m @ 100m): 4.7 meters at high magnification,10.8 meters at low magnification Exit Pupil (mm): 13.3 - 4.4 Weight (ounces): 12.5 Weight (grams): 354.4 Length (in): 12.4 Length (cm): 31.5 Mounting Space (in): 5.6 Mounting Space (cm): 14.2 Objective Aperture (mm): 40 Eye Relief (in): 4.7 - 3.7 Eye Relief (mm): 119.0 - 94.0 Elevation Adjustment Range (MOA): 56 MOA Windage Adjustment Range (MOA): 56 MOA Features: The 1/2 MOA T2 elevation adjustment includes a pre-engraved bullet drop compensation (BDC) dial to match the ballistics of most 55 grain .223 Remington/5.56mm NATO loads. If you have a specific load you'd like to have matched, the Leupold Custom Shop can create additional dials for a nominal fee. The Multicoat 4 lens system delivers superior brightness, clarity, and optimal contrast, even in low light. Available with Duplex and MilDot reticles. Lockable, fast-focus eyepiece keeps your focus set. The power selector features aggressive knurling for easy adjustment, even with gloves. The tactile power indicator identifies your magnification with a touch. Durable matte black finish. Custom Shop serviceable - customize your Mark AR. Tested to the same performance standards as Leupold Mark 4 optics. Rugged and absolutely waterproof in all conditions.