Aero Precision M4E1 Threaded 18" .223 Wylde SS QPQ Complete Upper Receiver with 15" M-LOK ATLAS R-ONE Handguard - Anodized Black
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Aero Precision
Overview
The Aero Precision M4E1 Threaded 18" .223 Wylde SS QPQ Complete Upper Receiver is designed for builders looking for a versatile and ready-to-install upper that maintains compatibility with both .223 Remington and 5.56 NATO ammunition. Featuring an 18-inch barrel, this complete upper receiver is built on the M4E1 platform, providing enhanced performance and reliability. This setup is often found in precision-oriented builds or those aimed at versatile applications, making it a suitable choice for various shooting disciplines.
Specifications
Aero Precision M4E1 Threaded 18" .223 Wylde SS QPQ Complete Upper Receiver with 15" M-LOK ATLAS R-ONE Handguard - Anodized Black
Price and stock
The Aero Precision M4E1 Threaded 18" .223 Wylde SS QPQ Complete Upper Receiver with 15" M-LOK ATLAS R-ONE Handguard - Anodized Black was out of stock everywhere we track for all of August 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $499.99 at AR15 Discounts for when it comes back.
Prices checked · refreshed daily across 35 retailers
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