We have ONE of these IN STOCK and ready to go at an AWESOME price! TEXT to schedule an appointment to check pick one up today. (we also have an FDE Cerakoted version IN STOCK for $459.99)

This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist. The included S-ONE handguard is designed with size and weight in mind. Featuring a trimmed down top rail to help minimize weight and overall profile. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Includes:

  • M4E1 Threaded Upper Receiver, No Forward Assist
  • 9.2" ATLAS S-ONE Handguard
  • 10.5" 5.56 CMV Barrel
  • Low Profile Gas Block and Carbine Length Gas Tube
  • Port Door Assembly
  • A2 Flash Hider
  • This complete upper receiver does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab.