This A1 upper receiver 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 is ready for adjustable rear sight. The upper has a shell deflector and forward assist housing and will accept a standard dust cover. The C7 style carry handle allows mounting a scope. This upper does HAVE M4 feed ramps . Use with any Mil-Spec lower receiver.