Burris FastFire 4 1x Red Dot - Multi-Reticles - Instant on-target accuracy for any firearm from handguns to shotguns. A great choice for 3-Gun and wing shooting, and any use from patrol to plinking. Multiple reticle options, massive battery life and 4 different reticles make FastFire 4 the most versatile red dot reflex you can mount. Everything you loved about the FastFire 3 plus... Toggle between four different reticle options Larger sight window for faster target acquisition Longer battery life - up to 26k hours on medium brightness Brighter aiming point Optional screw-on weather shield for a completely enclosed sight Auto-Brightness & Auto-shutoff after 8 hours Lightweight at 1.6 oz