AAC Complete Upper 5.56mm With 16 Inch Barrel 1/2-28 TPI Out of stock. Check back later... $1,080.00 MSRP Price: $1,013.00 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 847128009153Manufacturer: Advanced Armament CorpModel: 102780Caliber: 223 RemCategory: PartsOtherUpper receiverStock: 0Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.