Add the FastFire III from Burris Optics to your hunting gear and enjoy its speed, accuracy, and precision in a convenient and easy to use red dot sight. Light and tough, this sight projects an unmistakable, bright red dot on your point of impact, giving you an immediate speed and accuracy advantage. Use the FastFire III as your primary sight or paired on top of an existing sight. The features of the FastFire III will make it one of your go-to gun accessories for any optics ready handgun. Automatic brightness sensor will adjust the brightness to match the environmental conditions. Or you can set the brightness yourself with 3 manual 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. Available with No Mount, which allows you to match it with the perfect mount for your use, whether it's sidearm, co-witness on an optic like an AR-332, or a shotgun. Choose a 3 MOA or 8 MOA dot size to fit your target and shooting needs. At Burris, we focus on what matters: accuracy, durability, innovation and value. Choose our optics for a lifetime of reliable performance that we guarantee, forever..