Aero Precision AR-15 M4E1-T 11.5 in Atlas S-One Complete Upper 5.56mm Blac
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Aero Precision
Overview
The Aero Precision AR-15 M4E1-T 11.5 in Atlas S-One Complete Upper is designed as a complete upper receiver assembly, featuring a compact 11.5-inch barrel chambered for 5.56 NATO. This upper employs a carbine-length gas system, which enhances reliability and ensures smooth cycling with a variety of ammunition. Typically, this upper is favored in builds that prioritize maneuverability while maintaining effective performance in the 5.56 caliber.
Specifications
Aero Precision AR-15 M4E1-T 11.5 in Atlas S-One Complete Upper 5.56mm Blac
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision AR-15 M4E1-T 11.5 in Atlas S-One Complete Upper 5.56mm Blac to a build in July 2026.
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 $429.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Aero Precision M4E1 Lower Complete W/ MOE SL Grip & SL Stock
Aero Precision AR-15 Breach Charging Handle Ambidextrous Large Levers
Aero Precision AR-15 BCG W/9310 Bolt, Forward Assist Nickel Boron
Dead Air Sandman X 7.62 Silencer, Black
SureFire M640U Scout Light PRO Weapon Light - 1000 Lumens - Black
Leapers UTG M-LOK Ultra Slim Handstop Blue
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