MPN: APAR640211M0 / APAR640212M0


  • Caliber: 5.56 NATO
  • Finish: Type III Class 2 Hardcoat Anodized or Cerakoted Flat Dark Earth
  • Upper Receiver: Aero Precision M4E1 Enhanced Upper - 7075-T6 Aluminum
  • Handguard: 7.3-Inch Gen 2 Enhanced M-LOK Handguard
  • M4 Feed Ramps: Yes
  • Muzzle Device: A2 Flash Hider
  • Barrel: 7.5" 1:7 QPQ Coated 4150 Chrome Moly Vanadium Barrel
  • Muzzle Thread Pattern: 1/2"-28 TPI
  • Gas Block: Aero .750" Low-Profile Gas Block
  • Gas Tube: Pistol Length Gas Tube
  • Bolt Carrier Group: Not Included
  • Charging Handle: Not Included
  • MPI and HP Tested

*This upper assembly does not come with Bolt Carrier Group and Charging Handle

*This upper receiver assembly has a barrel that is shorter than 16". This upper is only for use on AR pistol lower receivers and NFA registered Short-Barreled Rifle (SBR) lower receivers. All NFA laws apply!


  • Weight: ~2.47 lbs.
  • Length: ~16"


  • AR-15 lower receiver


  • 1x Aero Precision 7.5" 5.56 M4E1 Enhanced Complete Upper Assembly


If you’ve been looking for a high-quality 7.5” upper receiver, rest assured that your search is over. The 7.5-Inch M4E1 Enhanced Upper by Aero Precision is designed to meet the rigorous requirements of today’s AR-15 owner.

Innovative Design

This upper assembly includes the Aero Precision-exclusive M4E1 Enhanced Upper. The M4E1 Enhanced Upper integrates the handguard mounting surface directly into the upper itself, creating a true monolithic upper with the strength called for among the accessory-laden rifles of today. The ability to change rail systems when desired permits maximum customization opportunities.

Lighter and Cooler

This M4E1 Enhanced Upper Assembly has additional lightning cuts on the handguard to save weight and allow more efficient cooling. This product will arrive with a pre-installed barrel and Enhanced Handguard to allow you to continue your assembly or replacement as quickly as possible.

As the owner of an AR-15, you understand the responsibility you bear to ensure that your rifle is in the best of conditions at all times. Should an urgent need arise, you won’t want to be caught struggling with a malfunctioning weapon because you purchased cheap parts. The Aero Precision brand has proven itself over and over again to be worthy of gun owners’ trust. Order your upper receiver assembly today!


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  • This Item: Aero Precision 7.5" 5.56 M4E1 Enhanced Complete Upper Assembly
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