Aero M4E1 Threaded Stripped Upper Receiver - Uncoated (C) Out of stock. Check back later... $135.00 MSRP Price: $119.99 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 840014620005Manufacturer: Aero PrecisionModel: APAR700200CCategory: PartsOtherUpper receiverStock: 0Unit/Measure: EA This item may be shipped directly to your home address, unless you live in a restricted state.