Aero M5E1 (.308) Enhanced Upper Receiver Barrel Nut (C) Out of stock. Check back later... $30.00 MSRP Price: $26.99 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 840014606467Manufacturer: Aero PrecisionModel: APRH308904CCategory: PartsOtherMisc AR-15 PartsStock: 0Unit/Measure: EA This item may be shipped directly to your home address, unless you live in a restricted state.