Aero M4E1-T Complete Upper, 10" .300 Blackout Barrel, SM9.3 - Ano Available to order on-line. Ships in 5-14 days $615.00 MSRP Price: $586.00 Description Details Reviews Shipping info UPC: 840014601745Manufacturer: Aero PrecisionModel: APAR700302M4Category: PartsOtherUpper receiverStock: Ships in 5-14 business days.Unit/Measure: EA This item may be shipped directly to your home address, unless you live in a restricted state.