The FastFire 3 is the best selling red dot sight from Burris. It is available with a 3 MOA or 8 MOA dot.
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.
Automatic brightness sensor adjusts brightness to match the environmental conditions; also has 3 manual brightness settings
Battery access is conveniently located on the top of the sight; automatic time-out feature after 8 hours helps battery last up to 5 years
Available with Picatinny/Weaver mount for mounting on rifles, handguns and tactical shotguns
 
Bright red dot allows for fast target acquisition and easy aiming
Compact and lightweight, so it won’t 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—using Burris mounting systems
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™
Models with 3-MOA dot size or 8-MOA dot size