M4E1 Threaded Assembled Upper Receiver - FDE Cerakote

MSRP: $144.99
Our Price: $123.24
(You save $21.75 )
(2 reviews) Write a Review
Usually ships in 1-2 business days. If squaring the receiver face is chosen, please allow for up to an additional 3 days time.

Out of Stock

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed for your convenience.


  • New enhanced forging that gives the upper receiver a "billet look"
  • New picatinny profile that blends seamlessly with Aero's Enhanced and ATLAS Series Handguards
  • M4 Feedramps
  • .250 takedown pin holes
  • Includes threaded forward assist roll pin
  • Includes port door and forward assist

2 Reviews Hide Reviews Show Reviews

  • 5
    Aero Upper

    Posted by Christopher Stratton on Jan 2nd 2021

    Solid Product, quick shipping, Will buy from you again

  • 5
    Aero M4e1 upper

    Posted by Andrew Fisher on Dec 27th 2019

    Best price I could find, super fast shipping, couldn’t ask for anything more.