Aero Precision M4E1 Threaded Complete Upper 8" .300 Blackout Barrel ATLAS R-ONE 7" M-LOK HG - FDE Cerakote
Overview
The Aero Precision M4E1 Threaded Complete Upper 8" .300 Blackout Barrel ATLAS R-ONE 7" M-LOK HG - FDE Cerakote is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Aero Precision M4E1 Threaded Complete Upper 8" .300 Blackout Barrel ATLAS R-ONE 7" M-LOK HG - FDE Cerakote
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 Threaded Complete Upper 8" .300 Blackout Barrel ATLAS R-ONE 7" M-LOK HG - FDE Cerakote to a build in March 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 $540.99 at AR15 Discounts for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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