Receiver PartsAero PrecisionSold by Brownells

Aero Precision

M4e1 Pistol Lower Complete W/ A2 Grip - M4e1 Pistol Complete Lower W/A2 Grip No Brace For Ar-15 Blk

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

Aero Precision

M4E1 complete lower receiver for

Includes A2

Grip in black

Enhanced Pistol

Receiver extension

Comes Mil-spec

A mil-spec lower parts kit

Includes Ar15

Carbine buffer and spring

$249.99
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SKU: 100054439

Overview

Built as a foundation for a custom AR-15 pistol setup, this complete lower receiver package brings together Aero Precision’s M4E1 lower with an A2 grip and enhanced pistol receiver extension. It also includes a mil-spec lower parts kit, AR15 carbine buffer, and spring, giving builders the core components needed for assembly. The anodized black finish keeps the look straightforward and practical for a serious build. As noted, it is transferred as “OTHER” on the Federal 4473 form and is not technically a pistol until assembled in pistol configuration.

Why Hunters Choose the Aero Precision

Complete Lower

Receiver provides a ready base

Includes Aero

Precision M4E1 lower receiver in

Comes A2

A2 grip in black for

Includes Mil-spec

Lower parts kit for a

Enhanced Pistol

Receiver extension, buffer, and spring

Key Features

  • Aero Precision M4E1 complete lower receiver for custom AR15 pistol builds
  • Includes an A2 grip in black
  • Features an enhanced pistol receiver extension
  • Comes with a mil-spec lower parts kit
  • Includes an AR15 carbine buffer and spring
  • M4E1 stripped lower receiver finished in anodized black

Best Used For

  • Custom AR-15 pistol builders wanting a complete lower receiver foundation
  • Users who prefer an M4E1 lower with A2 grip and enhanced pistol receiver extension
  • Builders seeking a black anodized lower with mil-spec lower parts kit included
  • Those assembling a pistol configuration and needing a complete lower receiver transfer item

Specifications

Blade FinishAnodized Black
BraceNo Brace
BufferAR15 Carbine Buffer
Configuration NoteNot technically a pistol until fully assembled in a pistol configuration
Federal 4473 Form TransferOTHER
GripA2 Grip - Black
Lower Parts KitMil-spec
M4e1 Lower ReceiverIncluded
Receiver ExtensionEnhanced Pistol Receiver Extension
SpringAR15 Carbine Spring

Pros

  • Complete lower receiver provides a ready base for a custom AR15 pistol build.
  • Includes Aero Precision M4E1 lower receiver in anodized black finish.
  • Comes with A2 grip in black for a straightforward, familiar setup.
  • Includes mil-spec lower parts kit for a complete lower assembly.
  • Features enhanced pistol receiver extension, buffer, and spring included.
  • Transferred as "OTHER" on Federal 4473; requires full pistol configuration to be a pistol.

Considerations & Trade-offs

  • This is a complete lower receiver, so it still requires the remaining upper and final assembly to become a functional AR-15 pistol configuration.
  • It includes an Enhanced Pistol Receiver Extension and AR15 carbine buffer and spring, but no brace is listed in the product details.
  • The lower is described as anodized black with an A2 grip, so the included configuration is fixed rather than a fully stripped build starting point.
  • All complete lower receivers are transferred as 'OTHER' on the Federal 4473 form, which is an important compliance detail to account for during purchase and transfer.

Suggested Comparisons

  • AR-15 stripped lower receivers
  • AR-15 complete lower receivers
  • AR-15 pistol braces
  • AR-15 lower parts kits

Suggested Accessories

  • AR-15 pistol brace or stabilizing brace
  • AR-15 upper receiver assembly
  • AR-15 magazines
  • Gun cleaning kit

Frequently Asked Questions

What is included with this complete lower receiver?

The listed components are an M4E1 stripped lower receiver in anodized black, an A2 grip in black, a mil-spec lower parts kit, an enhanced pistol receiver extension, and an AR15 carbine buffer and spring.

Is this a complete pistol ready to use as shipped?

No. The product notes that although it is labeled a "Pistol Complete Lower Receiver," it is not technically a pistol until it is fully assembled into a pistol configuration.

What brand makes this lower receiver?

The product is made by Aero Precision.

How is this transferred on the Federal 4473 form?

The description states that all complete lower receivers are transferred as "OTHER" on the Federal 4473 form.

Does this come with a brace?

No brace is listed in the included components. The description specifically names an enhanced pistol receiver extension, A2 grip, lower parts kit, buffer, and spring, but does not mention a brace.