AR-15 Complete Flat Top Upper Receiver with Ejection Port Cover and Forward Assist installed. Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer. Details: AR-15 Complete Flat Top Upper Receiver M4 Feed Ramps Forged 7075 T6 Aluminum Mil-Spec Anodized Finish Ejection Port Cover Installed Forward Assist Installed