Ask the Community

Michael, yes, it is a complete upper. The included bolt carrier group is full auto capable when using a select fire lower receiver, but will work just fine in semi auto lowers as well.

yes it includes the bolt carrier group " The included bolt carrier group is full auto capable when using a select fire lower receiver, but will work just fine in semi auto lowers as well." Colt's commitment to quality and excellence are evident in every piece that leaves the factory. This complete upper assembly is no exception to that rule. Built from the factory as a complete upper assembly kit, not stripped from a rifle outside of the factory, you can rest assured you are purchasing a genuine Colt product. The upper features a 16" barrel with a 1:7" twist rate, a polymer carbine length hand guard encompasses the barrel. It's also outfitted with a fixed front sight base and flip up rear sight. The included bolt carrier group is full auto capable when using a select fire lower receiver, but will work just fine in semi auto lowers as well. Specifications and Features: Colt AR6720 AR-15 Complete Upper Assembly AR6720CK 5.56mm NATO (accepts .223 Remington) 16" barrel 1:7" Twist Threade