Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Mid-Length - ATLAS R-ONE - 14.5"
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Overview
The Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Mid-Length - ATLAS R-ONE - 14.5" is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Mid-Length - ATLAS R-ONE - 14.5"
Available Merchants(6)
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August 2026 on GunPartPicker
Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Mid-Length - ATLAS R-ONE - 14.5" ranked #109 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since May 2026. All time, it ranks #124 of the 1,585 upper receivers builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, but today none of the 6 retailers we track has it in stock right now. The best price drifted down from $15.86 to $15.13 over August 2026 without a real sale. Listed prices start at $11.99 at Sportsmans Outdoor Superstore for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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