Ideal for AR or carbine shooters, the Burris AR FastFire 3 combines the power of the 1x FastFire 3™ sight with the toughness of the Picatinny-style AR-F3™ mount. The AR FastFire 3 is positioned perfectly as a standalone sight for an AR and is also suitable as a co-witness with flip-up sights. Increase your situational awareness and accuracy with parallax-free, both eyes open shooting.