Same dependable red dot sight as the FastFire II with enhanced features, including a tactile pushbutton power switch with three controllable levels of brightness, plus an automatic brightness setting. Battery access from the top lets you change the battery without removing the sight from the gun. Low battery indicator and automatic power shutoff after 8 hours help keep you from running out of power at the wrong time. Windage and elevation adjustments can be made quickly with a coin - no special tool needed - with a 3Adeg (190" at 100 yards) adjustment range. Available with 3 or 8 MOA dot, with or without quick-attach/detach Picatinny mount (also fits Weaver rails). Mfg: Burris SPECS: Aluminum, stainless steel, and bronze, matte black finish. 1.9" (48.2mm) long x 1" (25.4mm) wide x 1" high. .9 oz. (25 g) wt. Runs on one CR-1632 Lithium battery. Includes battery, protective cover, mounting screws, wrench, and instructions. FastFire III 300234 & 300236