Holosun HE509 ACSS Vulcan X2

  • Innovative ACSS Reticle Helps You Find The Dot
  • Fully Enclosed and Sealed Emitter System
  • Industry Standard RMR Footprint



The future is now! Holosun’s HE509 pistol dot is a fully enclosed and sealed emitter design that’s much easier to keep clean than open emitter reflex sights. No more fumbling with Q-tips, no more worries about mud or rain. HE509 is super tough, with a battery life of 10,000 to 25,000 hours from a CR1632 battery.

What sets this variant of the HE509 apart is the outstanding reticle design. Holosun joined forces with Primary Arms to create a unique ACSS reticle featuring a center chevron surrounded by an extremely large ring. When the chevron is centered in the window the ring can’t be seen at all, but if you significantly misalign your sight picture you’ll see the edge of the ring on the opposite side, as a visual cue to help you “find the dot” faster when presenting from the holster or shooting from unconventional positions.

This unique combination of fully enclosed emitter optic and smart reticle makes the HE509 ACSS one of the most advanced pistol optics on the market, especially for iron sight shooters who have just adopted dot shooting and need a helping hand with sight alignment.


  • Advanced Combined Sighting System (ACSS) chevron and ring reticle
  • Red illumination only
  • Up to 25,000 Hours Battery Life
  • 12 Brightness Setting: 10 DL & 2 NV Compatible
  • 7075-T6 Aluminum Scope Body
  • Tray Battery Compartment Allows Battery Swap Without Re-Zeroing
  • Parallax-free & Unlimited Eye Relief
  • RMR® mounting pattern

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