Burris FastFire 4 - Multiple Reticle Red Dot Reflex Sight The Burris FastFire 4 provides 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. This FastFire 4 is compatible with our M.R.A. red dot adapter. 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 Specifications for Burris FastFire IV Reflex Red Dot Sight, Multi-Reticle, Black, 300259: Manufacturer: Burris Color: Black Finish: Matte Magnification: 1 x Reticles: FastFire 4 Multi-Reticles Reticle Colors: Red Attachment/Mount Type: MRA / Picatinny / Docter Eye Relief: Unlimited Click Value: 1 MOA Length: 1.9 in. Weight: 1.6 oz. Elevation Adjustment: 90 MOA Illumination Control: Push Button Illumination Settings: 3 manual settings / Auto Battery Type: CR1632 MSRP: $455.99 Red Dot Optics are not manufactured by OuterImpact and as such; any warranty issues will need to be addressed directly with the optics manufacturer. OuterImpact only offers an exchange or refund if the optic is returned to us unopened.