Burris FastFire 3 Red Dot Sight

The Burris FastFire 3 is a compact reflex sight that offers fast target acquisition and easy aiming. Weighing only 1.5 ounces, this lightweight sight mounts low to any 1913 Picatinny rail using the included removable base. Removing the base allows the FastFire 3 to be mounted to many other firearms that take advantage of the Burris mounting system.Features: Push button activation: auto, high, medium, low, and off Top loaded battery access FastFire 3 MOA dot Clear objective lens diameter: 21x15 mm Matte finish Picatinny mount Unlimited eye relief Elevation adjustment: 115 MOA Windage adjustment: 86 MOA Parallax-free Shockproof Waterproof Automatic brightness adjustment 3 manual brightness levels Powered by (1) CR1632 battery Runtime: ~5,000 hours Low battery warning indicator Length: 1.9" Weight: 1.5 oz Burris Forever WarrantyThe FastFire 3 incorporates advanced features like automatic dimming, which adjusts the brightness of the reticle to the environment and an auto-off function which puts the optic in sleep mode using the included hood cover. Pull the hood off to reactivate the sight without pushing the power button. Three manual push button activated brightness settings are also available. High-grade optical glass with index-matched, Hi-Lume multi-coating provides excellent brightness, clarity, low-light performance, and glare elimination with lasting durability.Burris Optics is a trusted source of binoculars, scopes, sights, reticles, and mounting systems for all hunting, tactical, and competitive shooting needs.