Burris FastFire 3 - 3 MOA Red Dot Reflex Sight The FastFire 3 is the best selling red dot sight from Burris. It is available with a 3 MOA or 8 MOA dot. This FastFire 3 is compatible with our M.R.A. red dot adapter. Light and tough, the FastFire 3 series puts an unmistakable, bright red dot on your target to give you an immediate speed and accuracy advantage. Can be used as a primary sight or paired on top of an existing sight. Features: Bright red dot allows for fast target acquisition and easy aiming Compact and lightweight, so it will not affect firearm balance or handling 1x magnification allows both-eyes-open shooting, for enhanced awareness and target acquisition Parallax-free, for better accuracy Mounts to almost anything including handguns, rifles, and shotguns. Automatic brightness sensor adjusts brightness to match the environmental conditions; also features 3 manual brightness settings Windage and elevation adjustments make optic fine-tuning easy; no special tool required High-grade optical glass provides excellent brightness and clarity, with lasting durability Index-matched, Hi-Lume multicoating provides low-light performance and glare elimination Waterproof Shockproof design stands up to years of punishing recoil CR1632 battery included Battery access is conveniently located on the top of the sight Comes with our Burris Forever Warranty(TM) Models with 3-MOA dot size or 8-MOA dot size Specifications for Burris FastFire III Reflex Red Dot Sight, 3 MOA Reticle, Black, 300234: Manufacturer: Burris Color: Black Finish: Matte Magnification: 1 x Objective Lens Diameter: 21 mm Field of View, Linear: 190 ft at 100 yds Attachment/Mount Type: MRA / Picatinny Operating Temperature: -10 - 130 Fahrenheit Weather Resistance: Yes Length: 1.8 in, 1.8 in Weight: 0.9 oz Included Accessories: Standard Condition: New Magnification Type: Fixed W/E Travel at 100 Yds: 190 in at 100 yds MSRP: $275.00 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.