Aero Precision EPC-9 Threaded 8.3\" 9mm Complete Upper Receiver w/ ATLAS S-ONE 7.3\" Handguard - APAR620101M85
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Aero Precision
Overview
The Aero Precision EPC-9 Threaded 8.3" 9mm Complete Upper Receiver is designed for AR-9 platform builds, providing a full assembly that simplifies the process for builders. With its 8.3" barrel length, this upper is optimized for compactness while still delivering reliable performance in 9mm caliber. Builders often incorporate this upper into pistol caliber carbine setups, where maneuverability and accuracy are essential.
Specifications
Aero Precision EPC-9 Threaded 8.3\" 9mm Complete Upper Receiver w/ ATLAS S-ONE 7.3\" Handguard - APAR620101M85
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision EPC-9 Threaded 8.3\" 9mm Complete Upper Receiver w/ ATLAS S-ONE 7.3\" Handguard - APAR620101M85 to a build in July 2026.
It 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 $367.20 at Stag Arms for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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