Aero Precision M4E1 Complete Upper .300 AAC Blackout 16 Barrel w/ ATLAS S-ONE
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Aero Precision
Overview
The Aero Precision M4E1 Complete Upper in .300 AAC Blackout features a complete assembly designed for the AR-15 platform, providing builders with a ready-to-install upper receiver that simplifies the build process. Made from billet aluminum, this upper combines durability with a sleek black finish, ensuring both functionality and aesthetics. This upper is commonly utilized in builds specifically tailored for the .300 Blackout caliber, making it a great choice for those looking to maximize performance in this versatile cartridge.
Specifications
Aero Precision M4E1 Complete Upper .300 AAC Blackout 16 Barrel w/ ATLAS S-ONE
Price and stock
The Aero Precision M4E1 Complete Upper .300 AAC Blackout 16 Barrel w/ ATLAS S-ONE was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $494.99 at Brownells for when it comes back.
Prices checked · refreshed daily across 35 retailers
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