Aero Precision M4E1-T Upper | 5.56 NATO | 16″

This complete Aero Precision M4E1-T upper ships with the ATLAS S-ONE handguard built for a slim profile and reduced weight. The S-ONE attachment system provides a stable mounting platform while keeping the overall unit compact. The upper is finished in Flat Dark Earth with an anodized surface treatment and is chambered for .223 Rem/5.56 NATO.

Typical applications include precision range training and competitive AR-style shooting where a lightweight, stable upper is preferred. The M4E1-T upper integrates factory design elements intended for AR-15 platform compatibility and modular accessory mounting.

Product Specifications

• The manufacturer is Aero Precision.
• The product model is listed as M4E1-T in the product name.
• The caliber is .223 REM/5.56 NATO.
• The barrel length is 16″.
• The barrel features a 1:7 twist rate.
• The upper is designed to fit the AR-15 platform.
• The included handguard is the ATLAS S-ONE model.
• The exterior color is Flat Dark Earth.
• The surface treatment is Anodized.
• The item is categorized as a Complete Upper Receiver.
• The product type is Upper.
• The listed barrel type/twist is 1:7.
• The UPC is 840014601592.

The M4E1-T upper pairs a lightweight ATLAS S-ONE handguard with a standard 16″ barrel profile to offer balanced handling and modular accessory options. Its anodized FDE finish provides a durable exterior while maintaining a subdued, tactical appearance suited to range and competitive environments.