Aero Precision EPC-9 Threaded Upper Receiver w/ LRBHO
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Aero Precision
Overview
The Aero Precision EPC-9 Threaded Upper Receiver is a stripped upper designed specifically for the AR-9 platform, allowing builders to create custom fitments for their 9mm setups. The inclusion of LRBHO (Last Round Bolt Hold Open) functionality enhances reliability by ensuring the bolt locks back after the last round is fired, which is essential for streamlined reloads. This upper receiver is commonly used in builds that prioritize compactness and versatility, often paired with compatible lower receivers for a complete AR-9 configuration.
Specifications
Aero Precision EPC-9 Threaded Upper Receiver w/ LRBHO
Build history on GunPartPicker
Builders on GunPartPicker first added the Aero Precision EPC-9 Threaded Upper Receiver w/ LRBHO to a build in May 2026.
It was hard to find in August 2026, in stock on only 2 of the 14 days we checked, and today none of the 2 retailers we track has it in stock right now. Prices barely moved in August 2026, holding around $159.99, so there haven't been real sales lately. Listed prices start at $159.99 at AR15 Discounts for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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