Primary Arms Optics GLx 1x MicroPrism Green Illuminated ACSS Cyclops Gen 3 Prism Sight

The Primary Arms GLx 1x MicroPrism is a purpose-built 1x prism optic designed for fast target acquisition in close-quarters and general-purpose rifle use. It pairs a wider objective lens with updated internal glass and edge-to-edge factory lens coatings for a crisp, bright sight picture that holds up across varied lighting conditions.

At the heart of the optic is the ACSS Cyclops Gen 3 reticle, illuminated in green with 13 brightness settings including three night-vision-compatible levels. AutoLive motion-sensing on/off technology automatically drops the illumination when the optic is at rest and brings it back up when motion is detected, conserving battery life on a single CR2032 cell.

The compact housing measures just 2.6" long and weighs 9.1 oz, making it a natural pairing with AR-pattern rifles, PCCs, and other platforms where low weight and a small footprint matter. Other key numbers include 4.4" of eye relief, a generous 74.8 ft field of view at 100 yards, and crisp 1/2 MOA per-click adjustments for dialing in a precise zero.

Built for hard field use, the GLx MicroPrism is shockproof, waterproof to IP67, and nitrogen-purged for fog-free performance across temperature swings. The black anodized finish and prismatic design set it apart from standard tube red dots while delivering the rugged reliability Primary Arms Optics is known for.