Aero Precision

Aero Precision M4E1 Threaded Complete Upper 10" .300 Blackout Barrel ATLAS R-ONE 9" M-LOK HG - Anodized

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Aero Precision M4E1 Threaded Complete Upper 10" .300 Blackout Barrel ATLAS R-ONE 9" M-LOK HG - Anodized

Explore the capabilities of the Aero Precision M4E1 Threaded Complete Upper, designed for shooters who prioritize compact power and versatility. This upper assembly features a 10" .300 Blackout barrel, perfect for close-quarters action or for a suppressor-ready build, offering significant stopping power in a compact package. The ATLAS R-ONE 9" M-LOK handguard provides a slim, lightweight platform for accessory customization without compromising durability.

The M4E1 upper receiver is threaded for a precise and robust connection to the handguard, enhancing the overall stability and accuracy of the system. The anodized finish not only adds a sleek, professional look but also provides a layer of protection against the elements and wear.


  • 10" .300 Blackout barrel suitable for versatile applications, including suppressed shooting.
  • ATLAS R-ONE 9" M-LOK handguard for a lightweight, adaptable platform.
  • Threaded M4E1 upper receiver for enhanced rigidity and precision alignment.
  • Durable anodized coating for enhanced protection and aesthetics.

Ideal for tactical, hunting, or recreational shooting, the Aero Precision M4E1 Threaded Complete Upper is a testament to Aero Precision's commitment to quality, combining advanced engineering with practical functionality to meet the demands of discerning shooters.

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Additional Information

Barrel Finish:
Barrel Profile:
Gas System Length:
Barrel Length (inches):
Cartridge Compatibility:
300 BLK
Twist Rate:
BCG / Charging Handle:
Not Included
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