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Aero Precision
Overview
The Aero Precision M4E1 Enhanced AR-15 Upper Receiver Assembly is a stripped upper designed specifically for AR-15 builds. Made from durable 7075-T6 aluminum, this receiver features a streamlined M4E1 design that offers a blend of functionality and aesthetic appeal. It is commonly used in builds that utilize a carbine gas system and chamber 5.56 NATO, making it a versatile choice for a wide range of applications.
Aero Precision M4E1 Enhanced AR-15 Upper Receiver Assembly - Black
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Prices checked
Aero Precision M4E1 Enhanced AR-15 Upper Receiver Assembly - Black ranked #124 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #123 of the 2,057 upper receivers builders have added. Builds with this upper receiver are split between 5.56 NATO (38%) and 300 Blackout (33%), split between carbine-length (37%) and pistol-length (37%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 5 retailers we track has it in stock right now. Listed prices start at $168.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Aero Precision M4e1 Enhanced Ar-15 Upper Receiver Assembly - Black
| Build | Parts | Total |
|---|---|---|
![]() | 11 | $1201.16 |
![]() | 12 | $1296.05 |
![]() | 23 | $1483.14 |
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