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Holosun HE509-RD Enclosed Solar Powered Red Dot Sight - ACSS Vulcan Reticle

Red Dot Sight

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Holosun HE509-RD Enclosed Solar Powered Red Dot Sight - ACSS Vulcan Reticle


The ACSS® Vulcan® Reticle is a revolutionary approach to mini reflex sights, improving user agility through a 'heads-up' target acquisition. Under duress, standard mini reflex reticles can be lost without proper sight alignment. With the ACSS Vulcan reticle, users always know the relative location of their aiming point, allowing for quick correction and improved accuracy on target.


  • Patented ACSS®  Vulcan®  Reticle
  • Switchable between Chevron and full ACSS Vulcan Reticle
  • Shake Awake™ - Motion on with last setting recall
  • Solar Panel Auxiliary Power
  • CR1632 Battery with Side Mount Battery Tray
  • Up to 20,000 Hours Battery Life
  • Memory Function and Motion Sensor
  • 10DL & 2NV brightness settings under manual mode
  • Push Button Illumination
  • IP67 Waterproof and fog-proof
  • Parallax free, unlimited eye relief


  • Color: Black
  • Finish/Material Aluminum
  • Adapter Plate: 507C Mounting Plate
  • Reticle: ACSS Vulcan
  • Illumination Type: LED
  • Illumination Color: Red
  • Brightness Settings: 12
  • Eye Relief: Unlimited
  • Length: 1.78”
  • Width: 1.22”
  • Height: 1.14”
  • Weight: 2 oz
  • Battery Life: Up to 20,000 Hours
  • Battery Typ: CR1632 3V Lithium Coin
  • Click Value: 1 MOA
  • Finish: Hardcoat Anodized

Please NOTE: The 509 ACSS model does not share the same footprint as the 509T (non-ACSS models) and therefore is incompatible with aftermarket mounting solutions and custom cut slides for the 509T (non-ACSS models).

More Information
Product Type Red Dot Sight
Manufacturer Holosun
Color Black
Mount Other
Reticle ACSS
Magnification 1x
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