Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Epc 9 Receiver Sets Threaded - Epc-9 Threaded Receiver Set 9mm/40 S&W Black

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

Epc-9 Receiver

Set from Aero Precision for

Precision Machined

From two custom 7075-T6 aluminum

Includes Last

Round bolt hold open

Compatible Standard

Standard frame Glock magazines

Supports 9x19

The appropriate bolt carrier and

$299.99
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SKU: 100042438

Overview

Built as a foundation for an AR9-style build, this receiver set is intended for shooters setting up a 9mm or .40 S&W platform with the appropriate bolt carrier and barrel. It accepts standard frame Glock magazines and includes last round bolt hold open functionality. The lower receiver features a threaded bolt catch pin for easier installation, an integrated enlarged trigger guard, and a threaded takedown pin detent recess for detent and spring installation. For hunters and outdoor users who want a straightforward starting point for a pistol-caliber carbine build, it offers a purpose-driven set of features without unnecessary complexity.

Why Hunters Choose the Aero Precision

Precision Machined

From custom 7075-T6 aluminum forgings

Includes Last

Round bolt hold open

Compatible Standard

Standard frame Glock magazines

Supports 9x19

Appropriate bolt carrier and barrel

Threaded Bolt

Catch pin simplifies installation

Key Features

  • EPC-9 receiver set from Aero Precision for an AR9 build foundation.
  • Precision machined from two custom 7075-T6 aluminum forgings.
  • Includes last round bolt hold open.
  • Compatible with standard frame Glock magazines.
  • Supports 9x19 and .40 S&W with the appropriate bolt carrier and barrel.
  • Threaded bolt catch pin supports easier installation.
  • Integrated enlarged trigger guard adds a more rugged platform.

Best Used For

  • AR9 builders seeking a receiver set foundation for a 9mm or .40 S&W setup
  • Users planning a Glock magazine-compatible build with standard frame magazines
  • Builders who want last round bolt hold open in an EPC-9 platform
  • Owners prioritizing easier installation with threaded bolt catch pin and takedown pin detent recess
  • Hunters and shooters wanting a rugged receiver set for a custom pistol-caliber carbine

Specifications

Caliber Compatibility9x19
Caliber Compatibility 2.40 S&W
ColorBlack
Integrated Enlarged Trigger GuardYes
Last Round Bolt Hold OpenYes
Magazine CompatibilityStandard frame Glock magazines
Material7075-T6 Aluminum forgings
Number Of Forgings2
PlatformAR9 build
Receiver Set TypeEPC-9 receiver set
Threaded Bolt Catch PinYes
Threaded Takedown Pin Detent RecessYes

Pros

  • Precision machined from custom 7075-T6 aluminum forgings
  • Includes last round bolt hold open
  • Compatible with standard frame Glock magazines
  • Supports 9x19 and .40 S&W with appropriate bolt carrier and barrel
  • Threaded bolt catch pin simplifies installation
  • Integrated enlarged trigger guard adds a more rugged build platform

Considerations & Trade-offs

  • Requires the correct bolt carrier and barrel for use with either 9x19 or .40 S&W; caliber compatibility is not standalone.
  • This is a receiver set, so it serves as the foundation for an AR9 build rather than a complete firearm.
  • Designed around standard frame Glock magazines, which may limit magazine choice if you prefer a different pattern.
  • The threaded receiver features may simplify installation, but they also make this set more build-specific than a basic receiver option.

Suggested Comparisons

  • AR-9 receiver sets
  • 9mm or .40 S&W pistol-caliber carbines
  • AR-9 lower parts and build components
  • Glock magazine-compatible builds

Suggested Accessories

  • AR9 upper receiver
  • 9mm bolt carrier group
  • Glock-pattern magazines
  • AR pistol brace

Frequently Asked Questions

What type of build is the EPC-9 receiver set intended for?

It is presented as the foundation for an AR9 build.

What calibers is this receiver set compatible with?

It is compatible with 9x19 and .40 S&W when used with the appropriate bolt carrier and barrel.

What magazines does the EPC-9 receiver set use?

It is compatible with standard frame Glock magazines.

What receiver set features are specifically listed for the lower receiver?

The listed lower receiver features are a threaded bolt catch pin for easier installation, an integrated enlarged trigger guard, and a threaded takedown pin detent recess.

Does the product include a last round bolt hold open?

Yes. The product description states that it features a last round bolt hold open.