M4E1 5.56 Assembled Upper Receiver Carbine W/G2 Handguard - M4E1 5.56 NATO Assem Uppr Rcvr M4 16'''' Bbl Carbine Black
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Aero Precision
Overview
The Aero Precision M4E1 5.56 Assembled Upper Receiver is a complete upper designed for the AR-15 platform, featuring a 16-inch barrel and a carbine-length gas system. This configuration provides reliable cycling with 5.56 NATO ammunition, making it an excellent choice for a variety of applications. You'll commonly find this upper in builds focused on versatility and performance in tactical or recreational shooting scenarios.
Specifications
M4E1 5.56 Assembled Upper Receiver Carbine W/G2 Handguard - M4E1 5.56 NATO Assem Uppr Rcvr M4 16'''' Bbl Carbine Black
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 5.56 Assembled Upper Receiver Carbine W/G2 Handguard - M4E1 5.56 NATO Assem Uppr Rcvr M4 16'''' Bbl Carbine Black to a build in February 2026.
It was hard to find in August 2026, in stock on only 6 of the 25 days we checked, and today none of the 3 retailers we track has it in stock right now. It dipped to $508.61 at Brownells for a stretch in August 2026, well under its usual $579.99, so sales do come around. Listed prices start at $579.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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