AeroPrecision167528092
Epc-9 9Mm/40 S&W Assembled Upper Receiver W/Lrbho Black$204.99
Availability: In Stock
Current Stock: Out of stock
The Aero Precision EPC-9 upper receiver in FDE is a purpose-built upper for 9mm and .40 S&W AR9 builds. This assembled unit combines Aero's integrated one-piece design with a last-round bolt hold-open mechanism, giving you a platform that's both rigid and refined. Built from 7075-T6 aluminum and engineered to accept Aero's Enhanced and Quantum handguards, the EPC-9 delivers the modular capability serious AR9 builders want without the complexity of traditional setups.
What makes this upper stand out is the engineering philosophy behind it. By forging the handguard mounting platform directly into the upper receiver, Aero eliminated the need for separate rail mounting components and condensed installation to just 8 screws. That one-piece construction isn't just simpler—it's stronger. The shared forging also allowed Aero to machine lightening cuts throughout, saving weight while improving heat dissipation. You get a rifle that runs cooler and handles faster. Installation is straightforward: drop in your barrel assembly, torque the included barrel nut to spec, slide your handguard into place, and you're done.
The last-round bolt hold-open feature tracks when your magazine runs dry, letting you know immediately that you're out of ammunition. Standard AR15 takedown and pivot pin lugs mean it works with your existing lower receiver without any surprises. The FDE finish fits naturally into modern tactical builds while wearing hard enough for field use. This is a purpose-designed upper that respects your time and your standards—no compromises, no filler specs.
| Caliber | 9mm / .40 S&W |
| Material | 7075-T6 Aluminum (forged) |
| Finish | FDE (Flat Dark Earth) |
| Handguard Compatibility | Aero Precision Enhanced and Quantum handguards |
| Magazine Compatibility | Glock-pattern magazines |
| Pin Pattern | Standard AR15 takedown / pivot pin lug |
| Included Components | Pre-installed last-round bolt hold-open assembly, Enhanced barrel nut, barrel nut wrench |
Yes. The EPC-9 uses standard AR15 takedown and pivot pin lugs, so it's compatible with any standard AR9 lower receiver. The LRBHO mechanism is designed to work with Glock-pattern magazines, which are common in AR9 platforms.
The EPC-9 is compatible with Aero Precision's Enhanced and Quantum handguard lineup. Its integrated mounting platform is specifically designed for these rails.
Yes. The last-round bolt hold-open assembly comes pre-installed on the upper receiver and is ready to use out of the box.
You receive the assembled upper receiver with the pre-installed LRBHO assembly, an Enhanced barrel nut, and a barrel nut wrench for installation.
SKU: 167529634 • Weight: 1.1oz
Availability: In Stock
Current Stock: Out of stock
The Aero Precision EPC-9 upper receiver in FDE is a purpose-built upper for 9mm and .40 S&W AR9 builds. This assembled unit combines Aero's integrated one-piece design with a last-round bolt hold-open mechanism, giving you a platform that's both rigid and refined. Built from 7075-T6 aluminum and engineered to accept Aero's Enhanced and Quantum handguards, the EPC-9 delivers the modular capability serious AR9 builders want without the complexity of traditional setups.
What makes this upper stand out is the engineering philosophy behind it. By forging the handguard mounting platform directly into the upper receiver, Aero eliminated the need for separate rail mounting components and condensed installation to just 8 screws. That one-piece construction isn't just simpler—it's stronger. The shared forging also allowed Aero to machine lightening cuts throughout, saving weight while improving heat dissipation. You get a rifle that runs cooler and handles faster. Installation is straightforward: drop in your barrel assembly, torque the included barrel nut to spec, slide your handguard into place, and you're done.
The last-round bolt hold-open feature tracks when your magazine runs dry, letting you know immediately that you're out of ammunition. Standard AR15 takedown and pivot pin lugs mean it works with your existing lower receiver without any surprises. The FDE finish fits naturally into modern tactical builds while wearing hard enough for field use. This is a purpose-designed upper that respects your time and your standards—no compromises, no filler specs.
| Caliber | 9mm / .40 S&W |
| Material | 7075-T6 Aluminum (forged) |
| Finish | FDE (Flat Dark Earth) |
| Handguard Compatibility | Aero Precision Enhanced and Quantum handguards |
| Magazine Compatibility | Glock-pattern magazines |
| Pin Pattern | Standard AR15 takedown / pivot pin lug |
| Included Components | Pre-installed last-round bolt hold-open assembly, Enhanced barrel nut, barrel nut wrench |
Yes. The EPC-9 uses standard AR15 takedown and pivot pin lugs, so it's compatible with any standard AR9 lower receiver. The LRBHO mechanism is designed to work with Glock-pattern magazines, which are common in AR9 platforms.
The EPC-9 is compatible with Aero Precision's Enhanced and Quantum handguard lineup. Its integrated mounting platform is specifically designed for these rails.
Yes. The last-round bolt hold-open assembly comes pre-installed on the upper receiver and is ready to use out of the box.
You receive the assembled upper receiver with the pre-installed LRBHO assembly, an Enhanced barrel nut, and a barrel nut wrench for installation.
SKU: 167529634 • Weight: 1.1oz