M4E1 Threaded Complete Upper 18" 6.5 Grendel SS Barrel ATLAS R-ONE 15" M-LOK HG - Anodized
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Aero Precision
Overview
The Aero Precision M4E1 Threaded Complete Upper 18" 6.5 Grendel SS Barrel ATLAS R-ONE 15" M-LOK HG - Anodized is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
M4E1 Threaded Complete Upper 18" 6.5 Grendel SS Barrel ATLAS R-ONE 15" M-LOK HG - Anodized
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 Threaded Complete Upper 18" 6.5 Grendel SS Barrel ATLAS R-ONE 15" M-LOK HG - Anodized to a build in April 2026.
It was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $654.99 at Dirty Bird Industries for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 36 retailers
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