Primary Arms 507K GR X2 Green Dot Sight Green ACSS Vulcan Reticle Anodized Finish Black Holosun K Footprint

The Primary Arms 507K GR X2 Green Dot Sight with ACSS Vulcan Reticle is a compact reflex optic engineered for shooters who demand fast target acquisition without the bulk of traditional tube-mounted red dot systems. Built on the proven Holosun K footprint, this green dot sight delivers the speed of a pistol red dot with the optical clarity and precision required for duty-grade performance. Whether mounted on a concealed-carry pistol or backup rifle, the 507K platform represents a mature evolution in miniaturized optics technology, preferred by tactical professionals and competition shooters who cannot afford sight picture delays or optical aberrations under stress.

This sight features a green ACSS Vulcan reticle—a ballistically optimized pattern specifically designed to reduce parallax error and enable precise holdovers at distance while maintaining an ultra-bright dot for close-quarters work. The green emitter improves contrast against most outdoor backgrounds and is easier on the eye during extended use compared to traditional red dots, reducing target fixation and fatigue. The anodized black finish provides military-spec durability and corrosion resistance, while the compact form factor—just 3.75 by 2.5 inches in profile—eliminates snag points and maintains weapon ergonomics. Holosun's sealed construction and shake-awake technology ensure the optic remains combat-ready with minimal battery drain during storage.

Law enforcement officers carrying compact duty pistols, armed civilians prioritizing concealed-carry efficiency, and riflemen building lightweight tactical platforms will benefit most from this sight's real-world performance envelope. The Holosun K footprint compatibility ensures seamless integration with CZ P-10 Compact, Canik METE, and other modern striker-fired pistols that ship with milled or adapter-plate optic cuts. Installation requires no gunsmith—most platforms accept the 507K with minimal torque using standard mounting hardware. This optic excels in sub-25-yard engagements where speed matters and in transitional situations where shooters must move between close and intermediate targets without losing target lock.