Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length Atlas R-One - 16"
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Aero Precision
Overview
The Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length Atlas R-One - 16" is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length Atlas R-One - 16"
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length Atlas R-One - 16" to a build in April 2026.
It was hard to find in September 2026, in stock on only 2 of the 17 days we checked, and today none of the 3 retailers we track has it in stock right now. Prices barely moved in September 2026, holding around $579.99, so there haven't been real sales lately. Listed prices start at $579.99 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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Frequently Built With
The part most often added in each category by the builds that include this one
Silencerco AR-15 Billet Lower Receiver
Franklin Armory BFSIII AR-S1 Binary Trigger - 5645A
Aero Precision AR-15 5.56 BCG W/C158 Bolt - Aero Logo - Phosphate
Geissele Super Charging Handle (SCH), 7.62, Desert Dirt Color 05-476S
Magpul AFG Angled Fore Grip - Black
Rise Armament AR-15 Magazine Release Button - Rise Red
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