Start your project with our complete A1 upper receiver anodized. Comes with the standard features of a Mil-Spec upper receiver and is forged from 7075-T6 aluminum with a black hard coat anodized, tough finish. The A1 carry handle includes A1 adjustable rear sight, and perfect for building a retro M16A1E1, M16A2 Carbine Model 723, or a Model 733 Commando. The upper has a shell deflector and tear drop forward assist and dust cover. The C7 style carry handle allows mounting a scope from the era for a retro look. This upper does have M4 feed ramps. Use with any Mil-Spec lower receiver.