Aero M4E1-T Complete Upper, 11.5" 5.56 Barrel, RM10.3 - ODG Anodized Out of stock. Check back later... $610.00 MSRP Price: $549.99 Notify me when this item is back in stock (log in required) Description Details Reviews Shipping info UPC: 840014621101Manufacturer: Aero PrecisionModel: APAR700396M29Category: PartsOtherUpper receiverStock: 0Unit/Measure: EA This item may be shipped directly to your home address, unless you live in a restricted state.