MPN: APAR610501M0 / APAR610601M0


  • Caliber: 5.56 NATO
  • Finish: Type III Class 2 Hardcoat Anodized Finish
  • Upper Receiver: Aero Precision AR-15 Upper with No Forward Assist - 7075-T6 Aluminum
  • Handguard: 7.3-Inch ATLAS S-ONE or R-ONE 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
  • HP and MPI Tested

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

*ATLAS S-ONE Handguard: Front and rear picatinny rail section. Eliminated center of top rail for weight reduction.

*ATLAS R-ONE Handguard: Full top picatinny rail

*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: ~2.19 lbs.
  • Length: ~16"


  • AR-15 lower receiver


  • 1x Aero Precision 7.5" 5.56 Complete Upper Assembly with No Forward Assist


The Aero Precision 7.5-inch complete upper assembly with no forward assist is designed for NATO caliber 5.56 AR15 firearms. The upper, paired with ATLAS's lightest handguard, improves the handling and functionality of your AR15 platform.

Improved Shooting Experience

This Aero Precision 7.5-inch upper assembly significantly reduces the weight of your AR15 platform. In addition, the upper is paired with the M-LOK ATLAS 7-inch handguard to increase your platform's maneuverability and speed up target acquisition. The handguard has a full top Picatinny rail for optional attachments and quick-disconnect sling sockets at the three-, six- and nine- o'clock positions provide for customized sling setup.

Superior Craftsmanship

The Aero Precision 7.5 inch 5.56 complete upper assembly with no forward assist has a low profile .750 gas block and pistol length gas tube for smooth and dependable ammo cycling. This 7.5" complete upper is cut from 7075-T6 aluminum and has a type III class 2 hardcoat anodized finish. The QPQ coated 4150 chromemoly vanadium 7.5-inch 5.56 pistol-length barrel is engineered for extended life and is cut with a 1/2 inch-28 TPI muzzle thread pattern that fits the included A2 flash hider. The assembly weighs in at just 2.2 pounds.

No-Hassle Installation

The Aero Precision 7.5-inch upper assembly comes ready to be installed and requires no special gunsmithing knowledge. Note that a BCG or charging handle is not included with this 7.5-inch upper.

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  • This Item: Aero Precision 7.5" 5.56 Complete Upper Assembly with No Forward Assist
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    MSRP: $399.99
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