F Aero Precision Complete Upper Receiver, M4E1-E, 5.56x45mm NATO, 13.9in, Government, Mid Length, 1 in 7, 1/2 x 28, 12.7in, A2 Flash Hider, Cerakote, FDE, APAR600284M99 $609.99 APAR600284M99 show more like this Dvor