Holosun HS403B Paralow 2 MOA Red Dot 20mm Micro Reflex Sight FDE HS403B-FDE


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    Holosun HS403B-FDE Paralow 2 MOA Red Dot 20mm Micro Reflex Sight FDE

    The Holosun HS403B Paralow 2 MOA Red Dot 20mm Micro Reflex Sight FDE HS403B-FDE is a versatile, high-performance, micro-reflex sight designed for modern sporting rifles/carbines. Featuring a precise 2 MOA dot reticle, it enables precise shot placement close to mid-range and can be paired with a magnifier for long-range targets. The Holosun HS403B-FDE sight is parallax-free with unlimited eye relief, allowing flexible rail placement, and includes a lower 1/3 co-witness mount for use with iron sights. Equipped with Holosun's Shake Awake function, the reticle activates upon movement and deactivates during inactivity, ensuring immediate readiness and battery conservation. The Super LED illumination offers 12 brightness levels, adapting to varying light conditions, and multilayer lens coatings maximize light transmission while reducing glare. The durable 6061 aluminum housing, available in Flat Dark Earth (FDE), adds to its robust design, making the HS403B an ideal choice for users of all levels in diverse shooting scenarios.


    The Holosun 403 Series Red Dot Sights represent a line of advanced Holosun Reflex Sights designed for rifle and carbine applications. These Holosun Micro Reflex Sights feature a unique combination of solar and battery power, utilizing a 50,000-hour Red Super LED. With 10 daylight and 2-night vision compatible reticle intensity settings, a robust 6061 aluminum housing, and versatile mounting options (including lower 1/3 co-witness and low mounts), these sights cater to users of all levels. The Holosun 403 Series Red Dot Sights, belonging to the broader category of Holosun Micro Reflex Sights, is distinguished by its always-on functionality, digital buttons for easy adjustments, and thoughtful accessories like rubber lens covers and a side-mounted battery tray. This makes the Holosun 403 Series an exceptional and user-friendly choice for shooters seeking reliable and adaptable reflex sights.

    Features of Holosun 403 Reflex Sights:

    • 2 MOA Dot Reticle
    • 12 Brightness Setting: 10 DL & 2 NV Compatible
    • Up to 50,000 Hours Battery Life (Setting 6)
    • Parallax-free & Unlimited Eye Relief
    • Solar Failsafe
    • Convenient Tray Battery Compartment

    Included in the box

    • Lower 1/3 Cowitness Mount
    • Low Profile Mount
    • T10 L Key
    • Rubber Cover
    • User Manual
    • CR2032 Battery
    • Lens Clothy

    Specs

    Model403
    FootprintAimpoint Micro
    Weight:2.82 oz
    Length2.45 inches
    Mount:Lower 1/3 Cowitness
    Magnification Range:1x
    Reticle Size2 MOA
    Reticle ColorRed
    Parallax Adjustment:Free
    Eye Relief:Unlimited
    Adjustment Graduation0.5 MOA
    Elevation Adjustment±50 MOA
    Windage Adjustment±50 MOA
    Package IncludesLower 1/3 Cowitness Mount
    Low Profile Mount
    T10 L Key
    Rubber Cover
    User Manual
    CR2032 Battery
    Lens Cloth
    Finish:FDE
    Dimensions:2.45 x 1.43 x 1.6 inches
    Night Vision CompatibleYes
    Brightness Settings2 NVD 10 DL
    BatteryCR2032
    Battery Type:CR2032
    Battery Life:Up to 50,000 Hours
    Item Condition:New
    UPC605930624762
    MPNHS403B-FDE
    Product TypeShop All Reflex
    BrandShop All Holosun
    Date First AvailableJune 07, 2022
    Last UpdatedFebruary 25, 2025
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