DealC & S Firearms AR15 Custom Upper. -Anderson Mil Spec Upper Receiver. -16 M4 Contour 556 NATO CHAMBER, 1-7 Twist Barrell, M4 Feed Ramps, mid-length gas system, .073 port, Parkerized -12.5" Free Float Quad Rail -Andersons knight stalker flash hider, reduces barrel jump for fast accurate follow up shots -No bolt carrier or charging handle. from C & S Firearms (Product C & S Custom Ar15 Upper) |