Helping bring targets down to size, the Firefield Impact XL is a compact reflex sight designed for use on modern sporting rifles and shotguns. Offering rapid target acquisition and unlimited eye relief for quick and easy aiming, the Impact XL features 4 different reticle options with 5 brightness settings providing ultimate user preference. Shockproof and IP55 water resistant, this robust reflex sight is housed in durable cast aluminum. Able to withstand recoil on firearms up to .308 caliber, the lightweight Impact XL weighs just 5.6 oz. and runs off a CR1632 battery.