M4E1 Threaded 350 Legend Assembled Upper Receiver - M4E1 350 Legend Assembled Upper M4 20" Carbine Threaded FDE
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Aero Precision
Overview
The Aero Precision M4E1 Threaded 350 Legend Assembled Upper Receiver is a complete upper designed specifically for the AR-15 platform, featuring a 20-inch barrel optimized for .350 Legend caliber. The M4E1 receiver type enhances the overall rigidity and reliability of your build, while the flat dark earth (FDE) finish provides a sleek and stealthy look. This upper receiver is commonly found in builds focused on .350 Legend, making it a great choice for both hunting and target shooting applications.
Specifications
M4E1 Threaded 350 Legend Assembled Upper Receiver - M4E1 350 Legend Assembled Upper M4 20" Carbine Threaded FDE
Price and stock
The Aero Precision M4E1 Threaded 350 Legend Assembled Upper Receiver - M4E1 350 Legend Assembled Upper M4 20" Carbine Threaded FDE was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $589.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
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