Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green
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Aero Precision
Overview
The Aero Precision M4E1 Threaded Complete Upper Receiver is designed for the AR-15 platform and features a 16-inch mid-length barrel chambered in 5.56 NATO, providing a balance of maneuverability and accuracy. With a twist rate of 1:7, this setup is optimized for stabilizing a wide range of bullet weights, making it versatile for various shooting applications. This upper receiver is commonly found in builds that prioritize a streamlined aesthetic and reliable performance, especially for tactical or recreational shooting.
Specifications
Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green
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Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green to a build in June 2026.
Updated · from real builds on GunPartPicker
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