Aero Precision M4E1 Threaded No FA Complete Upper 16\" 5.56 Mid, 15\" M-LOK ATLAS S-ONE - Anodized Black - APAR712105M7
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Aero Precision
Overview
The Aero Precision M4E1 Threaded No FA Complete Upper features a mid-length gas system tailored for 5.56 NATO caliber, making it an excellent choice for builders looking for improved reliability and reduced recoil. This complete upper is designed with the M4E1 receiver type, ensuring compatibility and a seamless fit with AR-15 platforms. It’s a popular choice for a variety of builds, particularly those focused on enhanced performance and versatility in mid-range shooting applications.
Specifications
Aero Precision M4E1 Threaded No FA Complete Upper 16\" 5.56 Mid, 15\" M-LOK ATLAS S-ONE - Anodized Black - APAR712105M7
Build history on GunPartPicker
Builders have been adding the Aero Precision M4E1 Threaded No FA Complete Upper 16\" 5.56 Mid, 15\" M-LOK ATLAS S-ONE - Anodized Black - APAR712105M7 to their builds on GunPartPicker since February 2026. All time, it ranks #963 of the 1,714 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $534.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953
Bravo Gfgmod 3 Black Bcmgunfighter Pistol Grip Black Polymerrubber
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