Holosun HS507K X2 Compact Open Reflex Optical Sight ACSS Vulcan Reticle

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The HS507K-X2 with ACSS Vulcan Dot Reticle features an RMSc footprint and is natively compatible with many of the most popular concealed carry pistols.


  • Battery Life – 25,001 – 50,000 Hours
  • Battery Type – CR1632 3V Lithium Coin
  • Brand – Holosun
  • Brightness – 12 Settings
  • Click Value – 1 MOA
  • Finish – Hardcoat Anodized
  • Material – Aluminum – 7075-T6
  • Night Vision Compatible – Night Vision Compatible
  • Reticle – ACSS VULCAN
  • Reticle Color – Green
  • Warranty – Limited lifetime
  • Weight – 1.0 Oz

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Made as a collaboration between Holosun Optics and Primary Arms Optics, the Green-illuminated HS507K-X2 with patented ACSS® Vulcan® Dot Reticle brings the revolutionary Vulcan aiming system to a micro reflex footprint.

Designed for concealed carry, the HS507K-X2-ACSS is lightweight, durable, and dependable, with up to a 40,000-hour runtime on medium settings. This sight retains all the core features and technologies of the standard Holosun model, including the Multi-Reticle System, Shake Awake technology, and a built-in Lock Mode. With 12 green-illuminated brightness settings and intuitive push-button controls, the HS507K-X2-ACSS works in any lighting condition and is even compatible with night vision devices..


  • Green-Illuminated patented ACSS® Vulcan® Dot Reticle System
  • Ultra-compact size for concealed carry applications.
  • Two Reticle Settings: Dot + Circle, and Dot only
  • Shake Awake™ – Motion on with last setting recall.
  • Parallax-free, unlimited eye relief.
  • CNC milled 7075 Aluminum Housing.
  • 10 daylight and 2 night vision compatible brightness settings.
  • IP67 Certified.