Burris AR-F4 FastFire Picatinny AR-15 Red Dot Mount Matte Black

The Burris AR-F4 Flat-Top FastFire Mount is the simplest and most effective way to mount any FastFire sight on an AR flattop. The AR-F4 allows the Fastfire to mount at the optimum height so the red dot can co-witness with flip-up sights. FeaturesFits Weaver or Picatinny-style baseMetal wings protect the lens from impact and unintentional abuseLower compartment stores spare battery, open-end wrench, and Torx wrench