Comes with a heavy match, 1x9 twist chrome moly barrel mounted on mil- spec upper ( Flat top ). Comes fully assembled (minus bolt/carrier and charging handle) with deltaring assembly, forward assist assembly, gas tube assembly, ejection port cover assembly, and heat shielded hand guards. Light weight Barrel shown, Rear Flip up sight sold separately.
Upper Receiver is from same manufacturer that makes them for Military Sub contract with Skeleton Key Marking and is Mil-Spec. Barrel is Made by ER Shaw or Wilson. Forged A-2 Front sight base