Find the Vortex Optic that is right for you. No matter if youre shooting a pistol, shotgun or AR15, Vortexs Crossfire Red-Dot Sight gets you on target fast. Daylight-bright 2-MOA dot promotes rapid engagement of targets while also providing the precision you need to engage targets at a distance. Fully multicoated lenses with anti-reflective coatings on all air-to-glass surfaces maximize light transmission for bright images and crisp details. 11 brightness settings allow you to adjust the dots intensity to match the ambient lighting conditions. Parallax-free. Unlimited eye relief for rapid target acquisition. Matte hard-anodized finish cuts down on glare. O-ring seals keep out moisture, dust and debris. CR-2032 battery (included) powers the sight for up to 7,000 hours on medium brightness. Includes skeletonized mount that offers two mounting-height options. Backed by the Vortex VIP Unlimited Lifetime Warranty. 2.5L x 1.1W. Wt: 5.2 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Size: CROSSFIRE RED DOT. Type: Electronic Sights.