YHM Upper, Black Diamond Carbine Top End, 556NATO, 16" Barrel, 1:7 Twist, Fits AR Rifles, Black Finish, YHM Flip Front and Rear Sight YHM-7800-7 Out of stock. Check back later... $934.00 MSRP Price: $779.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 816701017854Manufacturer: Yankee Hill MachineModel: YHM-7800-7Caliber: 5.56x45mm NATOCategory: PartsOtherUpper receiverStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.