Made with a 5 MOA red-dot reticle, the TRUGLO® 30mm Red-Dot Sight gets you on target quickly. Multicoated lenses produce more than 95% light transmission for clarity, even in low-light situations. Click windage and elevation adjustments help you stay on target in difficult situations. 30mm objective lens gives you a broad sight picture (44% more viewing area than standard 25mm models). Unlimited eye relief and a wide field of view help you acquire targets exceptionally fast. Shock-resistant construction withstands drops on hard surfaces. Multiple brightness settings let you customize the sight to your liking. Waterproof and fogproof. Integrated Weaver-style mounting system. Powered by a 3V-CR2032 battery (included). Manufacturer’s lifetime limited warranty.