Burris Refurbished ProductsBurris refurbished products have been returned to Burris by a customer, and may exhibit minor cosmetic blemishes from usage that will vary from refurbished product to product. Refurbished products and their included accessories have been restored to a guaranteed operational standard for a new product by Burris. All Burris refurbished products are covered by the Burris Forever Warranty (View Warranty).Light and tough, the FastFire series puts an unmistakable, bright red dot on your target to give you an immediate speed and accuracy advantage and can be used as a primary sight or paired on top of an existing sight. The FastFire 3 provides 3 manual brightness settings, plus an automatic brightness adjustment setting. The top-mounted battery offers easy access, without removing the sight. Windage and elevation adjustments are accurate and easy to use.Bright red dot allows for fast target acquisition and easy aimingCompact and lightweight, so it won't affect firearm balance or handling1x magnification allows both-eyes-open shooting, for enhanced awareness and target acquisitionParallax-free, for better accuracyMounts to almost anything including handguns, rifles, and shotguns, using Burris mounting systemsAutomatic brightness sensor adjusts brightness to match the environmental conditions; also features 3 manual brightness settingsWindage and elevation adjustments make optic fine-tuning easy; no special tool requiredHigh-grade optical glass provides excellent brightness and clarity, with lasting durabilityIndex-matched, Hi-Lume multi-coating provides low-light performance and glare eliminationWaterproofShockproof design stands up to years of punishing recoilCR1632 battery includedBattery access is conveniently located on the top of the sightComes with our Burris Forever WarrantyIncludes Picatinny mount for mounting on rifles, handguns, and tactical shotguns