The next generation of FastFire Red-Dot is here with the introduction of the FastFire III. The popular FastFire II is even better with upgraded features that include a top mounted battery ((1) CR1632) for easier battery replacement, upgraded windage and elevation adjustments and a power button that provides three manual brightness settings and an automatic brightness setting with low battery indicator. The precision FastFire III allows for manual brightness adjustment and includes a protective cover and battery. Just like the rugged FastFire II, the FastFire III features a Steel body construction for extreme durability and is 100% waterproof. The ultimate CQB sight is perfect for mounting on your pistol, shotgun or rifle. A mount is required for your specific application. Mounts are available as Picatinny/weaver style mount (861748), AR Flat Top Mount (447960)) or model specific mount (Family # 1548119655). Covered by the Burris Forever Warranty.