Aero Precision M4E1-T RM10.3 Complete Upper 5.56 X 45 12.5INCH Government Carbine 1-7 Twist 1/2 X 28 Thread Anodized Black
All Aero Precision upper receivers2 options
- Anodized · Black, this page
- Cerakote · FDEout of stock
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Aero Precision
Overview
The Aero Precision M4E1-T RM10.3 Complete Upper is designed for the AR-15 platform and features a 12.5-inch barrel chambered in 5.56 NATO, making it suitable for a range of shooting applications. The 1:7 twist rate optimally stabilizes a variety of bullet weights, enhancing accuracy and performance, while the 1/2 x 28 thread pitch allows for easy attachment of muzzle devices. This complete upper is commonly used in short-barreled rifles and builds focused on compactness without sacrificing versatility.
Specifications
Aero Precision M4E1-T RM10.3 Complete Upper 5.56 X 45 12.5INCH Government Carbine 1-7 Twist 1/2 X 28 Thread Anodized Black
2 options
- Anodized · Black, this page
- Cerakote · FDEout of stock
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1-T RM10.3 Complete Upper 5.56 X 45 12.5INCH Government Carbine 1-7 Twist 1/2 X 28 Thread Anodized Black to a build in June 2026.
It was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $554.99 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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