Receiver PartsAero PrecisionSold by Brownells

Aero Precision

M4e1 Lower Complete W/ A2 Grip & M4 Stock - M4e1 Comp Lower Receiver W/ A2 Grip & M4 Stock For Ar-15 Blk

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

Complete Lower

Receiver for an AR-15 custom

Includes Aero

Precision M4E1 lower receiver in

Supplied A2

A2 grip and M4 stock

Mil-spec Lower

Parts kit

Includes Carbine

Receiver extension, buffer, and spring

$314.99
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SKU: 100054437

Overview

Built as a complete lower receiver for an AR-15 build, this Aero Precision setup provides the core components needed to start or finish a rifle project without sourcing each part separately. It comes with an M4E1 lower receiver, A2 grip, M4 stock, mil-spec lower parts kit, carbine receiver extension, and AR-15 carbine buffer and spring. The anodized black finish gives it a clean, uniform appearance, while the included furniture keeps the configuration straightforward and familiar. For hunters and shooters assembling a practical rifle base, it offers a ready-to-use foundation with a conventional layout.

Why Hunters Choose the Aero Precision

Complete Lower

Receiver provides a ready base

Includes A2

Grip and M4 stock for

Aero Precision

M4E1 lower receiver in anodized

Comes Mil-spec

Mil-spec lower parts kit, carbine

Factory-assembled Lower

Components simplify parts selection for

Key Features

  • Complete lower receiver for an AR-15 custom build
  • Includes Aero Precision M4E1 lower receiver in anodized black
  • Supplied with A2 grip and M4 stock in black
  • Features a mil-spec lower parts kit
  • Includes carbine receiver extension, buffer, and spring
  • Made by Aero Precision

Best Used For

  • AR-15 builders wanting a complete lower receiver as a starting point for a custom setup
  • Shooters who prefer a straightforward lower with A2 grip and M4 stock included
  • Users assembling a carbine-style AR-15 and needing core lower components in one package
  • Hunters or outdoorsmen building a black anodized lower for a practical, no-frills rifle
  • Owners seeking an Aero Precision lower receiver with mil-spec parts already assembled

Specifications

BufferAR-15 Carbine Buffer
ColorBlack
GripA2 Grip
Grip ColorBlack
Lower Parts KitMil-spec Lower Parts Kit
M4e1 Stripped Lower Receiver FinishAnodized Black
PlatformAR-15
Receiver ExtensionCarbine Receiver Extension
SpringAR-15 Carbine Spring
StockM4 Stock
Stock ColorBlack

Pros

  • Complete lower receiver provides a ready base for an AR-15 build
  • Includes A2 grip and M4 stock for a straightforward setup
  • Features Aero Precision M4E1 lower receiver in anodized black
  • Comes with mil-spec lower parts kit, carbine receiver extension, buffer, and spring
  • Factory-assembled lower components simplify parts selection for the builder

Considerations & Trade-offs

  • This is a complete lower receiver assembly, so it is suited to builders who want a ready-to-use foundation rather than a stripped lower for full component selection.
  • The included A2 grip and M4 stock provide a fixed configuration, which may not suit users planning to customize those parts immediately.
  • The product is described as a base for an AR-15 build, so it is intended for compatibility within that platform rather than as a standalone firearm component.
  • Because the listing does not specify upgraded or specialty parts beyond the included mil-spec lower parts kit, it is a straightforward setup rather than a highly customized one.

Suggested Comparisons

  • AR-15 complete lower receivers
  • Stripped lower receivers
  • AR-15 lower parts kits
  • Carbine stock assemblies

Suggested Accessories

  • AR-15 upper receiver
  • Magazines
  • Sling
  • Optic mount

Frequently Asked Questions

What comes included with the M4E1 Complete Lower Receiver?

According to the product data, it includes the M4E1 stripped lower receiver in anodized black, an A2 grip in black, an M4 stock in black, a mil-spec lower parts kit, a carbine receiver extension, and an AR-15 carbine buffer and spring.

Is this a complete lower or do I need additional lower parts?

It is listed as a complete lower receiver, and the included components are shown in the product data. The listing does not specify any additional parts needed beyond pairing it with a compatible upper for an AR-15 build.

What platform is this lower receiver intended for?

The description identifies it as a base for a custom AR-15 build and lists the included carbine buffer and spring setup.

What color is the receiver and furniture?

The product data lists the M4E1 stripped lower receiver as anodized black, with a black M4 stock and black A2 grip.

Who makes this lower receiver?

The manufacturer listed in the product data is Aero Precision.