Holosun rifle optic Red Dot HS403R

ca$ 249.99 249.99 CAD

ca$ 249.99

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The HS403R is a 20mm micro optical sight designed for rifle and carbine applications. Features include our new Rotary Switch, 12 brightness settings, Holosun’s Super LED with up to 50k hour battery life, and a 2 MOA Dot.  Includes lower 1/3 co-witness and low profile mounts.


    Super LED
    Multilayer Coatings


    Rotary control for faster operation and visual brightness indicator
    Up to 100,000 Hours Battery Life (Setting 6)
    2 MOA Dot Reticle
    12 Brightness Setting: 10 DL & 2 NV Compatible
    Parallax-free with unlimited eye relief

NOTE: The size of the dot is measured in minutes of angle (moa), with 1 minute of angle being equal to 1 inch @ 100 yards (approx.). Example; a 2 moa module will produce a dot that will cover 2 inches of your target @ 100 yards, a 6 moa module will cover 6 inches, and so on. When you reduce the target distance by half, you also reduce the minute of angle by half. Example; the 2 moa module will cover 1 inch @ 50 yards, the 6 moa module will cover 3 inches @ 50 yards, and so on.



  • Reticle                                    2 MOA Dot 
  • Light Wavelength                 650nm
  • Reticle Color                         Red
  • Parallax Free                        Yes
  • Unlimited Eye Relief            Yes
  • Magnification                       1x
  • Multi-Coatings                     Yes


  • Power Source                      Battery
  • Battery Type                        CR2032
  • Battery Life (Hours)           100 000
  • Brightness Setting             10 DL&2 NV


  • Window Size                        20mm Diameter
  • Dimension (in)                    2.75×1.43×1.62
  • Weight (oz)                          3.53


  • Housing Material                6061 T6 Aluminum
  • Surface Finish                     MAO
  • Adjustment per Click        0.5 MOA
  • W&E Travel Range             ±50 MOA


  • Storage Temperature        -40~70
  • Working Temperature       -30~60
  • Submersion                         IP67
  • Vibration                               1000G

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