Made as a collaboration between Holosun Optics and Primary Arms Optics, the red-illuminated HS507K-X2 with ACSS Vulcan Dot Reticle brings the 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 red-illuminated brightness settings and intuitive push-button controls, the HS507K-X2-ACSS works in any lighting condition. This co-branded optic features the ACSS Vulcan Dot reticle system, which improves acquisition and recovery speed through its patented outer reference circle. When aimed on-target, the ACSS Vulcan Dot reticle appears as a simple, unobtrusive 3 MOA dot. When your aim is off target, the edge of the 230 MOA outer circle guides you back to center. The HS507K-X2 with ACSS Vulcan Dot Reticle features an RMSc footprint. NOTE: Astigmatism can cause a red dot reticle to look blurry/fuzzy. This is a very common eye condition many have but are unaware of. A quick at home check is to take a picture of the reticle with your phone’s camera as your phone cannot have an astigmatism. Another issue can be from having the brightness setting up too high in a bad lighting environment like indoors. Try turning the brightness down and repeating the previous suggestion if the reticle is still blurry to your eyes. If the reticle is still blurry in both pictures, there may be an issue with the reticle that is covered by warranty. EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States.