Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Epc-9 9mm Luger Assembled Upper Receiver W/No Barrel For Ar15 - Epc 9 Threaded Upper Receiver W/Lrbho Olive Drab Green

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Epc-9 Assembled

Upper receiver for AR9 builds

Includes Last

Round bolt hold open mechanism

Accepts Most

AR15-compatible barrel nuts and handguards

Standard Ar15

Takedown and pivot pin lug

Machined From

Custom forged 7075-T6 aluminum

$164.99
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SKU: 430112186

Overview

Built for an AR9-style pistol-caliber setup, this upper receiver is intended for shooters assembling a 9mm Luger build around a compatible AR15 platform. It includes a pre-installed last round bolt hold open assembly and is designed to work with most standard AR15 barrel nut and handguard combinations, which can simplify parts selection during a build. The standard takedown/pivot pin lug pattern and laser-engraved T-marks add practical utility for assembly and setup. The olive drab green finish gives the receiver a subdued look suited to a field-ready or range-focused build.

Why Hunters Choose the Aero Precision

Includes Last

Round bolt hold open mechanism

Accepts Most

AR15-compatible barrel nuts and handguards

Standard Ar15

Takedown and pivot pin lug

Dimple Above

Proper handguard timing

Machined From

Custom forged 7075-T6 aluminum

Key Features

  • EPC-9 assembled upper receiver for AR9 builds
  • Includes a last round bolt hold open mechanism
  • Accepts most AR15-compatible barrel nuts and handguards
  • Standard AR15 takedown and pivot pin lug pattern
  • Machined from custom forged 7075-T6 aluminum
  • Laser engraved T-marks for easier setup

Best Used For

  • AR9 builders wanting a threaded upper receiver with last-round bolt hold open support
  • Users pairing most standard AR15 barrel nuts and handguards on a pistol-caliber build
  • Shooters seeking a standard AR15 takedown and pivot pin lug pattern
  • Builders who want a pre-installed LRBHO assembly included with the upper receiver

Specifications

Barrel IncludedNo
ColorOlive Drab Green
Compatible Barrel Nuts And HandguardsMost AR15 compatible barrel nuts and handguards
Handguard Timing FeatureDimple above threads
IncludesUpper Receiver; Pre-installed last round bolt hold open assembly
Last Round Bolt Hold OpenYes
MaterialCustom forged 7075-T6 aluminum
T MarksLaser engraved
Takedownpivot Pin Lug PatternStandard AR15

Pros

  • Includes a last round bolt hold open mechanism for AR9 builds.
  • Accepts most AR15-compatible barrel nuts and handguards.
  • Standard AR15 takedown and pivot pin lug pattern supports familiar assembly.
  • Dimple above threads helps with proper handguard timing.
  • Machined from custom forged 7075-T6 aluminum.
  • Laser-engraved T-marks aid consistent setup and reference.

Considerations & Trade-offs

  • Sold as an assembled upper receiver only; no barrel is included, so the build still requires compatible caliber-specific components.
  • Compatibility is described as working with most AR15 barrel nuts and handguards, but fitment should still be verified against the rest of the build.
  • The last round bolt hold open assembly is pre-installed, which adds convenience but also means the upper is more specialized than a basic stripped receiver.
  • The olive drab green finish is a finish choice rather than a performance feature, so appearance may matter more than matching other components.

Suggested Comparisons

  • AR-9 upper receivers
  • AR-15 compatible handguards
  • AR-15 barrel nuts
  • Pistol-caliber carbine build components

Suggested Accessories

  • Handguard
  • Barrel nut
  • Charging handle
  • Magazine

Frequently Asked Questions

Is this EPC-9 upper receiver complete with a barrel installed?

No. The product title identifies it as an assembled upper receiver with no barrel.

What type of build is this upper receiver intended for?

It is described as an EPC-9 upper receiver for an AR9 or pistol-caliber AR build.

Does it include last round bolt hold open functionality?

Yes. The listed features include an LRBHO, and the package includes a pre-installed last round bolt hold open assembly.

Will it work with standard AR15 barrel nuts and handguards?

The description says it accepts most AR15-compatible barrel nuts and handguards, but not every setup is guaranteed.

What material is the upper receiver made from?

The source data states it is machined from custom forged 7075-T6 aluminum.