Primary Arms 507K Red Dot Sight Red ACSS Vulcan Reticle Anodized Finish Black Holosun 407K/507K Footprint

The Primary Arms 507K Red Dot Sight with Red ACSS Vulcan Reticle is purpose-built for shooters who demand precision on compact and slide-mounted platforms. Designed around the Holosun 407K/507K footprint, this optic serves law enforcement, military personnel, and defensive shooters requiring fast target acquisition on pistols and compact rifles. The anodized black finish provides durability against environmental stress while maintaining the low-profile form factor essential for duty and carry applications where sight height over bore and reliability are non-negotiable.

Built on proven Holosun internals, the 507K delivers reliable parallax-free aiming through its advanced lens system and sealed optical chamber. The Red ACSS Vulcan reticle—optimized for close-quarters combat and rapid engagement—features a 2 MOA center dot surrounded by segmented rings that aid target centering without obscuring the sight picture. The anodized aluminum housing ensures corrosion resistance and impact durability, critical for duty weapons exposed to harsh weather, salt environments, and tactical deployment. This configuration provides the durability standard in professional duty optics while maintaining subminiature dimensions ideal for appendix carry and compact slide real estate.

This sight is optimally suited for Glock MOS platforms, SIG Sauer P365/P320, Smith & Wesson M&P Compact, and other pistols with RMSc or Holosun 407K/507K mounting patterns. Installation requires only a compatible mounting plate—no gunsmithing necessary. Professionals running multiple platforms appreciate the consistency of the ACSS Vulcan reticle across optics, enabling faster transitions and improved training efficiency. For duty pistol upgrades, competition preparation, or defensive carry enhancement, the Primary Arms 507K delivers accuracy, speed, and reliability in a form factor that doesn't compromise concealment or handling.