Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized
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Overview
The Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized
Available Merchants(3)
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Build history on GunPartPicker
Builders have been adding the Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized to their builds on GunPartPicker since April 2026. All time, it ranks #325 of the 1,659 upper receivers builders have added.
It was hard to find in September 2026, in stock on only 3 of the 22 days we checked, and today none of the 3 retailers we track has it in stock right now. The best price crept up from $534.40 to $594.99 over September 2026. Listed prices start at $564.99 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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