Aero Precision M4E1 Threaded Barreled AR-15 Upper .223 Wylde Fluted Mid-Length Atlas S-One - 16"
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Aero Precision
Overview
The Aero Precision M4E1 Threaded Barreled AR-15 Upper features a complete assembly designed for builders looking for a reliable and versatile upper. With a 16" barrel chambered in .223 Wylde, this upper allows for the use of both .223 Remington and 5.56 NATO ammunition, providing flexibility in cartridge choice. The mid-length gas system enhances reliability and reduces recoil, while the 1:8 twist rate stabilizes a range of bullet weights effectively. This upper is commonly found in builds that prioritize a mid-length gas system and .223 Wylde caliber for enhanced performance and versatility.
Specifications
Aero Precision M4E1 Threaded Barreled AR-15 Upper .223 Wylde Fluted Mid-Length Atlas S-One - 16"
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision M4E1 Threaded Barreled AR-15 Upper .223 Wylde Fluted Mid-Length Atlas S-One - 16" to a build in March 2026.
Today the one retailer we track is out of stock. Listed prices start at $654.99 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 36 retailers
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