Aero Precision M4E1 Enhanced 10\" .300 Blackout Complete Upper Receiver with 9\" Enhanced M-LOK Handguard - Cerakote FDE - APAR640222M4
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Aero Precision
Overview
The Aero Precision M4E1 Enhanced 10" .300 Blackout Complete Upper Receiver is designed for AR-15 builds, featuring a complete assembly that simplifies the process of upgrading or building your rifle. This upper is specifically chambered for .300 Blackout, making it ideal for those who want versatility in ammunition choices, particularly for suppressed or subsonic loads. The FDE Cerakote finish not only provides a sleek look but also enhances durability, while the M4E1 receiver type ensures compatibility with a wide range of lower receivers. This upper is commonly found in compact builds where maneuverability and performance are prioritized.
Specifications
Aero Precision M4E1 Enhanced 10\" .300 Blackout Complete Upper Receiver with 9\" Enhanced M-LOK Handguard - Cerakote FDE - APAR640222M4
August 2026 on GunPartPicker
Aero Precision M4E1 Enhanced 10\" .300 Blackout Complete Upper Receiver with 9\" Enhanced M-LOK Handguard - Cerakote FDE - APAR640222M4 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 #583 of the 1,600 upper receivers builders have added.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $589.99 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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