Aero Precision M4E1 Assembled AR 15 Upper Receiver 5.56x45mm Mid-Length 16 Barrel
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Aero Precision
Overview
The Aero Precision M4E1 Assembled AR-15 Upper Receiver is a complete upper that features a 16-inch barrel chambered in 5.56 NATO, designed to provide reliable performance and accurate shooting. Its mid-length gas system helps to enhance cycling efficiency and reduce recoil, making it a preferred choice for builders looking for a balanced setup. This upper receiver is commonly found in builds that prioritize versatility and moderate-range accuracy with the 5.56 NATO caliber.
Specifications
Aero Precision M4E1 Assembled AR 15 Upper Receiver 5.56x45mm Mid-Length 16 Barrel
Available Merchants(6)
Prices checked
Stock Alert
Build history on GunPartPicker
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 6 retailers we track has it in stock right now. Listed prices start at $543.99 at KY Gun Company for when it comes back.
Prices checked · refreshed daily across 37 retailers
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