Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote
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Aero Precision
Overview
The Aero Precision M4E1 Complete Upper Receiver features a 16-inch mid-length barrel chambered in 5.56 NATO, making it a versatile option for a variety of shooting applications. With a 1:7 twist rate, this upper is optimized for stabilizing a range of bullet weights, enhancing accuracy and performance. Finished in FDE Cerakote, this upper not only provides a tactical look but also improves durability against the elements. This upper is commonly found in builds focused on a balanced combination of maneuverability and precision shooting.
Specifications
Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote
Available Merchants(4)
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August 2026 on GunPartPicker
Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in Mid-Length Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard FDE Cerakote ranked #291 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #442 of the 1,593 upper receivers builders have added.
It was out of stock everywhere we track for all of August 2026, and today none of the 4 retailers we track has it in stock right now. Listed prices start at $454.74 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Frequently Built With
The part most often added in each category by the 4 builds that include this one
Strike Industries AR-15 Ultra Light Pivot / Takedown Pins - FDE
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Phase 5 Tactical AR-15 90 Degree Ambi Safety Selector Black
Fortis SHIFT Vertical Grip - M-LOK
Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group - Mystic Bronze
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