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 – Magnification 1x – Reticles FastFire 4 Multi-Reticles – Reticle Colors Red – Finish Matte – Mounting Type Picatinny Mount / Docter Optic – Eye Relief Unlimited – Click Value 1 MOA – Elevation Adjustment Total Capability 90 MOA – Length 1.9 in. – Weight 1.6 oz. – Illumination Control Push-button – Illumination Settings 3 manual brightness levels; automatic setting reactive to environment – Battery CR1632