F Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 11.5in, Government, Carbine Length, 1 in 7, 1/2 x 28, 10.3in, A2 Flash Hider, Anodized, OD Green, APAR700396M29 $549.99 APAR700396M29 show more like this Dvor