Holosun HS503GU Dual Reticles Circle Dot Sight (Options)


  • With the Holosun HS503GU, you can quickly switch between a circle dot reticle or a 2MOA dot. The HS503GU has an auto-shut off feature to prevent unnecessary battery drain, and with Holosun’s “Shake Awake” technology, the optic will turn on if there is any movement whatsoever. So when you grab your rifle, your optic will be ready.

    • Side-mounted battery for easy access
    • Windage and Elevation turrets are shrouded on two sides.
    • Great for day and night use
    • Up to 50,000 hours of operation on one battery.
    • Parallax-free, unlimited eye relief.
    • Extremely durable.
    • Includes Low mount and 1/3 Co-witness mount
    • Available in Black and FDE
    • See Specs tab for more info
  • Manufacturer Part Number: HSHS503GU/ HSHS503GU-FDE

    Light Source     LED
    Reticle     2MOA Dot & 65MOA Ring
    Parallax Free     Yes
    Unlimited Eye Relief     Yes
    Magnification     1x
    Multi-Coatings     Yes
    Integrated Laser     No
    Battery Type     CR2032
    Battery Life     Up to 50,000 Hours
    Brightness Setting     10 Daylight & 2 NV Compatible
    Housing Material     6061 Aluminum
    Surface Finish     MAO
    Housing Color     Black
    Adjustment per Click     0.5 MOA
    W&E Travel Range     ±50 MOA
    Storage Temperature     -40℉ - 158℉
    Working Temperature     -22℉ - 140℉
    Submersion     IP67
    Vibration     Up to 1000G
    Window Size     20mm Diameter
    Dimension (in)     2.44 x 1.18 x 1.45
    Weight (oz)     6.3
    Central Height (in)     1.63


  • The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible.
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