Instant dot-on-target accuracy for any firearm from handgun to shotgun, any sport from 3-Gun to wing shooting, any use from patrol to plinking. Loads of reticle options, massive battery life and 4 different models make FastFire the most versatile red dot reflex you can mount. Features: Toggle between 4 different reticle options Larger sight window for faster target acquisition Longer battery life - up to 50k hr on medium brightness Brighter aiming point Optional screw-on weather shield for a completely enclosed sight Auto-Brightness and Auto-shutoff after 8 hr Lightweight at 1.6 oz