Cyelee Optics CAT X PRO Reflex Red Dot Sight 1x21x16.5mm 3 MOA Dot/30 MOA Circle Black. It offers robust reliability purpose-built for duty and professional use and ready for any environment. The CAT X PRO red dot has a Multi-Reticle system allowing the use of 3 MOA red dot 30 MOA circle or both. Specifications for Cyelee Optics CAT X PRO 1x21x16.5mm Reflex Red Dot Sight: Manufacturer: Cyelee Optics Color: Black Fabric/Material: 7075-T6 Aluminum Magnification: 1 x Objective Window Size: 21x16.5 mm Reticle: 3 MOA Dot 30 MOA Circle Illumination Type: LED Illumination Color: Red Brightness Settings: 10 Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Open Parallax: Parallax Free Battery Type: Lithium Metal CR1632 Battery Life: Up to 50000 hours Water Resistance Level: IPX-7 Weight: 30 g Package Type: Box Red Dot Sights-Footprint: RMSc Lens Type: Multi Coated Gun Type: Pistol Package Contents: Cyelee Optics CAT X PRO 1x21x16.5mm Reflex Red Dot Sight Cyelee Optics X003ZVATAX: CAT X PRO Reflex Red Dot Sight 1x21x16.5mm 3 MOA Dot/30 MOA Circle Black