Aero Precision EPC-9 Upper Receiver, 9mm, Black

Aero Precision EPC-9 Upper Receiver

The EPC-9 upper receiver is purpose-built for 9mm AR-platform pistol caliber carbine builds. This is a complete, ready-to-install upper that brings together proven design principles and quality manufacturing.

Key Features

• Last Round Bolt Hold Open (LRBHO): The bolt locks back on the final round, giving you immediate visual and tactile feedback that your magazine is empty
• AR15 Compatible: Accepts standard AR15 barrel nuts and handguards, making it easy to customize your build with existing components
• Precision Machining: Forged from 7075-T6 aluminum, the same material used in aircraft construction, ensuring durability and reliability
• Proper Handguard Timing: Dimple above the threads ensures correct handguard alignment and function
• Standard Takedown Pattern: Uses conventional AR15 takedown and pivot pin lugs for familiar operation
• Laser-Engraved T-Marks: Professional markings aid in sight picture and component alignment

What's Included

The EPC-9 arrives fully assembled with the last round bolt hold open mechanism pre-installed. Simply pair it with a compatible lower receiver, bolt carrier group, and barrel to complete your build.

Why Choose the EPC-9

Pistol caliber AR builds have become increasingly popular for home defense, sport shooting, and training. The EPC-9 gives you a platform that's reliable, modular, and built to last. Whether you're a seasoned AR builder or stepping into the platform for the first time, this upper receiver delivers the quality you expect from Aero Precision.