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  • $595.95
  • Regular price $610.95

The HE509T-RD is an enclosed reflex optical sight designed for pistol applications. Features include a Titanium housing, Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake. RMR adapter plate is included.

 The included 509T-RD RMR adapter plate is not compatible with ZEV or Shadow Systems style RMR interfaces.


  • MRS: Circle Dot; Dot Only
  • Up to 50,000 Hours Battery Life (Setting 6)
  • 12 Brightness Setting: 10 DL & 2 NV Compatible
  • Enclosed Design & Titanium Housing
  • Convenient Tray Battery Compartment
  • Parallax-free & Unlimited Eye Relief





    • Reticle                                   2 MOA Dot & 32 MOA Circle
    • Light Wavelength               650nm
    • Reticle Color                        Red
    • Parallax Free                        Yes
    • Unlimited Eye Relief           Yes
    • Magnification                      1x
    • Multi-Coatings    Yes


    • Power Source                      Solar & Battery
    • Battery Type                        CR1632
    • Battery Life (Hours)           50000
    • Brightness Setting             10 DL&2 NV


    • Window Size                        0.66x0.9
    • Dimension (in)                    1.6×1.16×1.13
    • Weight (oz)                          1.72


    • Housing Material                Titanium
    • Surface Finish                     Titanium
    • Adjustment per Click        1 MOA
    • W&E Travel Range             ±30 MOA


    • Storage Temperature        -40~70
    • Working Temperature       -30~60
    • Submersion                         IP67
    • Vibration                               5000G



    Holosun Technologies Inc. has been an Original Equipment Manufacturer (OEM) for several years for many brands that you may be familiar with.  This includes both components and ready to sell full sight systems.  With this relationship, has come an accomplished team of engineers, research and development members and manufacturing expertise.  In 2013, Holosun has decided to build unique red dot / reflex sights under their own brand at very competitive prices.

    Since Holosun's inception in 2013, its main goal has always been to bring cutting edge technology to the end user. They continuously strive to improve and innovate our products by producing technology that makes sense and works! Below you will find more information on the technology that has made Holosun stand out from the crowd.

    Solar Failsafe™

    Holosun’s Solar Failsafe Technology is an innovative feature pioneered by Holosun in red dot sights.

    Solar Failsafe allows the red dot sight to remain powered when your battery fails.

    Holosun optics with Solar Failsafe feature automatic brightness adjustment; when you’re under the sun you have a bright reticle, when you move indoors it will automatically dim down to match ambient lighting conditions.

    Shake Awake™

    Holosun’s Shake Awake Technology shuts the LED off during periods of motionlessness.

    The amount of time it takes for the LED to deactivate (enter Sleep Mode) is user programmable. Shake Awake can also be completely deactivated which keeps the optic powered on for up to 100k hours (certain models).

    Multiple Reticle System (M.R.S.)

    M.R.S. gives the user the flexibility to use their optic as they need it. Units with this feature allow the user to turn on or off certain sections of the reticle giving the ability to have the ideal reticle for the job at hand. If you need a precise shot, you can run the 2MOA dot only. You need a reticle for fast target acquisition, just turn on an additional 65MOA ring with the push of a button! The best part....no need to rezero your optic when switching between reticle options!

    Super LED

    Holosun has been a leader in laser and LED technology for many years. Holosun Super LEDs provide a versatile range of intensity for the brightest environments down to no-light situations.

    High luminous efficiency, the human eye is more sensitive and comfortable to gold and green(high visual function).

    Not only does the Super Green LED give the user an option for those who have difficulty seeing in the red color spectrum, but it also gives greater power efficiency when using the optic in high brightness settings...


    Multilayer Coatings

    Holosun red dot sights and magnifiers are manufactured using optical glass with multilayer coatings applied to facilitate maximum light transmission and wear resistance while reducing glare.

    Little Phase Difference
    High Reflectivity



    Holosun’s use of Grade 5 Titanium in certain Elite Series red dot sights produces unparalleled strength and durability. Holosun Grade 5 Titanium has more than double the tensile strength and as high as five-times the fatigue strength of 7075 Aluminum. Grade 5 Titanium is also able to withstand seawater.