Colt Complete M4 Upper CALIFORNIA LEGAL - .223/5.56

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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, polymer Hand guards and A2 front sight base. 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 LE6920 AR-15 Complete Upper Assembly LE6920CK 5.56mm NATO (accepts .223 Remington) 16" barrel 1:7" Twist Threaded muzzle with A2 style flash hider Carbine length direct impingement gas system A2 front sight base Full auto capable bolt carrier group Magnetic Particle inspected (MPI) marked bolt Polymer hand guards Aluminum delta ring Dry film lubricated upper Made in the USA Black Note: These Colt uppers have been factory assembled, test fired and packaged. As such, there may be small assembly marks and powder residue. These upper assemblies are not "take off's" that are stripped from complete rifles outside the factory.