Cyelee Optics Chameleon Reflex Red Dot Sight 1.04x0.89in 2 MOA Dot 6 MOA Dot Black. It utilizes a high-visibility blazing-fast 6MOA reticle with the option to switch to an ultra-precise 2MOA dot. Purpose-built for concealed carry the width of the optics has been optimized to have the smallest profile possible as well as maximize ergonomics for handling your pistol slide. The STIG-RS(Astigmatism Relief System) reticle system is made for users with astigmatism and feedback is clear; many see the benefits of using the STIG-RS LED emitters. Additionally a larger 6MOA Dot allows for lower brightness settings without harming reticle acquisition time passively assisting. Specifications for Cyelee Optics Chameleon 1.04x0.89in Reflex Red Dot Sight: Manufacturer: Cyelee Optics Color: Black Fabric/Material: 7075-T6 Objective Window Size: 1.04x0.89 in Reticle: 2 MOA Dot 6 MOA Dot Brightness Settings: 10 Parallax: Free Battery Type: Lithium Metal CR1632 Battery Life: 50000 hours Water Resistance Level: IPX-7 Package Type: Box Red Dot Sights-Footprint: RMR Features of Cyelee Optics Chameleon 1.04x0.89in Reflex Red Dot Sight Utilizing The Trademarked STIG-RS System Shake Awake/Motion Deactivated Standby Top Mounted Battery 8 Daytime Settings/2 Night vision Settings Package Contents: Cyelee Optics Chameleon 1.04x0.89in Reflex Red Dot Sight Cyelee Optics X0051EOGMT: Chameleon Reflex Red Dot Sight 1.04x0.89in 2 MOA Dot 6 MOA Dot Black