USED Primary Arms CLx 1x Prismatic Red Dot Sight 3 MOA Dot w/ 45 MOA Circle Reticle Black. This optic brings the clarity and versatility of a prism design allowing for crisp clear sight pictures without the distortion that can affect red dots especially for users with astigmatism. The Primary Arms CLx 1x18mm Prismatic Red Dot Sight features a simple Circle Dot reticle and an industry-standard micro dot mounting footprint. Built with durable materials and dependable internals the Primary Arms CLx 1x Prism emphasizes core quality giving enthusiasts an excellent optic that balances performance and price. Additionally it's high height allows you to easily incorporate backup iron sights in your build giving you even more options when you use the CLx 1x18mm Prismatic Red Dot Sight. Specifications for Primary Arms CLx 1x18mm Prismatic Red Dot Sight: Manufacturer: Primary Arms Color: Black Magnification: 1 x Objective Lens Diameter: 18 mm Reticle: 3 MOA Dot w/ 45 MOA Circle Illumination Color: Red Brightness Settings: 10 Adjustment Click Value: 0.25 MOA Base/Mount Type: Fixed Battery Type: Lithium Metal CR2032 Water Resistance Level: Waterproof Length: 2.35 in Red Dot Sights-Footprint: Not Applicable Package Contents: Primary Arms CLx 1x18mm Prismatic Red Dot Sight Battery Primary Arms 710077: CLx 1x Prismatic Red Dot Sight 3 MOA Dot w/ 45 MOA Circle Reticle Black