Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Epc-9 9mm/40 S&W Carbine Complete Lower W/Moe Grip & Moe Sl-K Sto - Epc-9 Carbine Comp Lower W/Moe Grip & Moe Sl-K Stock Blk

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

Complete Epc-9

Lower receiver for a custom

Includes Magpul

MOE grip and MOE SL-K

Lower Parts

Kit, enhanced buffer tube, buffer,

Threaded Bolt

Catch pin supports easier installation

Integrated Enlarged

Trigger guard adds a more

$399.99
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SKU: 100049033

Overview

Built as a complete lower for a custom AR9 setup, this Aero Precision receiver provides a ready-to-assemble foundation for 9mm/.40 S&W carbine builds. It comes installed with a Magpul MOE grip and MOE SL-K carbine stock, along with the lower parts kit, enhanced buffer tube, EPC 7.7 oz buffer, M5 carbine buffer spring, and castle nut/end plate. The EPC-9 lower also includes a threaded bolt catch pin for easier installation and an integrated enlarged trigger guard for a more rugged platform. For hunters and shooters who want a straightforward starting point for a dedicated carbine build, it offers a practical, complete package without extra parts sourcing.

Why Hunters Choose the Aero Precision

Complete Lower

Receiver provides a ready base

Includes Magpul

MOE grip and MOE SL-K

Comes Lower

Lower parts kit, enhanced buffer

Threaded Bolt

Catch pin is designed for

Integrated Enlarged

Trigger guard adds a more

Key Features

  • Complete EPC-9 lower receiver for a custom AR9 build
  • Includes Magpul MOE grip and MOE SL-K carbine stock
  • Lower parts kit, enhanced buffer tube, buffer, and spring are installed
  • Threaded bolt catch pin supports easier installation
  • Integrated enlarged trigger guard adds a more rugged platform
  • Black finish as listed in the product title

Best Used For

  • Custom AR9 builders wanting a complete lower with installed components for a 9mm or .40 S&W carbine project.
  • Hunters or range shooters assembling an EPC-9 platform around a ready-to-use lower receiver.
  • Users who prefer a lower with Magpul MOE grip and MOE SL-K carbine stock already included.
  • Builders looking for simplified installation features like a threaded bolt catch pin and enlarged trigger guard.

Specifications

BufferEPC 7.7oz Buffer
Buffer SpringM5 Carbine Buffer Spring
Buffer TubeEnhanced Buffer Tube
Caliber9mm/40 S&W
Castle Nutend PlateIncluded
ColorBlk
GripMagpul MOE Grip
Integrated Enlarged Trigger GuardYes
Lower Parts KitIncluded
Lower ReceiverEPC-9 Complete Lower Receiver
PlatformAR9
StockMagpul MOE SL-K Carbine Stock
Threaded Bolt Catch PinYes

Pros

  • Complete lower receiver provides a ready base for a custom AR9 build.
  • Includes Magpul MOE grip and MOE SL-K carbine stock already installed.
  • Comes with lower parts kit, enhanced buffer tube, buffer, spring, and castle nut/end plate.
  • Threaded bolt catch pin is designed for easier installation.
  • Integrated enlarged trigger guard adds a more rugged platform and removes trigger guard tab breakage risk.

Considerations & Trade-offs

  • Complete lower receiver only; it is intended as a base for a custom AR9 build rather than a standalone firearm.
  • The included Magpul MOE grip and MOE SL-K carbine stock are already installed, so there is less room to tailor those components to personal preference.
  • The package is configured around the listed EPC-9 lower, buffer system, and lower parts kit; compatibility beyond the stated AR9 build use is not specified.
  • The product description emphasizes an enlarged trigger guard and threaded bolt catch pin, but it does not provide broader performance or durability claims beyond those features.

Suggested Comparisons

  • AR-9 complete lower receivers
  • Pistol-caliber carbine lower assemblies
  • AR-style lower receiver parts kits
  • Magpul-equipped carbine stocks and grips

Suggested Accessories

  • AR-9 magazine
  • Cleaning kit
  • Sling
  • Range bag

Frequently Asked Questions

What is included with this complete lower receiver?

The package includes the EPC-9 lower receiver, Magpul MOE grip, Magpul MOE SL-K carbine stock, lower parts kit, enhanced buffer tube, EPC 7.7 oz buffer, M5 carbine buffer spring, and castle nut/end plate. The listed parts are installed.

Is this lower receiver intended for a specific caliber or platform?

The product title and description identify it as an EPC-9 complete lower for a custom AR9 build, and the title also references 9mm/.40 S&W.

Are the grip and stock already installed?

Yes. The description states that the included parts are installed.

What features does the EPC-9 lower receiver have?

The listed features are a threaded bolt catch pin for easier installation and an integrated enlarged trigger guard designed to remove the risk of breaking off trigger guard tabs.

Who makes this complete lower receiver?

It is manufactured by Aero Precision.