Receiver PartsAero PrecisionSold by Brownells

Aero Precision

M5 Complete Lower Receiver W/Moe Sl Grip & Sl Carbine Stock - M5 Comp Lower W/Moe Sl Grip & Sl Carbine Stk For Ar .308 Blk

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

Complete Lower

Receiver for a custom big-bore

Includes Moe

SLA(R) Grip and MOE SLA(R)

Ships Lower

Lower parts kit, carbine receiver

Custom Designed

M5 Lower Receiver from Aero

Enhanced Forging

Machined from 7075-T6 aluminum

$414.99
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SKU: 100049025

Overview

Built as a ready-to-use foundation for a custom .308 AR setup, this complete lower receiver brings together the receiver, lower parts kit, carbine receiver extension, buffer and spring, along with an MOE SL grip and MOE SL carbine stock. It is intended for builders who want a streamlined starting point for a big-bore AR platform without sourcing each lower component separately. The receiver is machined from 7075-T6 aluminum and is designed to work with standard AR308 components and magazines. For hunters and other field-focused shooters, it offers a practical base for a personalized rifle build while keeping the configuration straightforward and compatible.

Why Hunters Choose the Aero Precision

Complete Lower

Receiver for custom big-bore AR

Includes Moe

SL grip and MOE SL

Comes Lower

Lower parts kit, receiver extension,

Works Standard

Standard AR308 components and magazines

Machined From

7075-T6 aluminum enhanced forging

Key Features

  • Complete lower receiver for a custom big-bore AR build.
  • Includes MOE SLA(R) Grip and MOE SLA(R) Carbine Stock.
  • Ships with lower parts kit, carbine receiver extension, buffer, and spring.
  • Custom designed M5 Lower Receiver from Aero Precision.
  • Enhanced forging machined from 7075-T6 aluminum.
  • Works with standard AR308 components and magazines.

Best Used For

  • Custom big-bore AR builders wanting a complete lower with included grip and stock
  • Hunters assembling an AR .308 platform around standard AR308 components and magazines
  • Users who prefer a ready-to-install lower receiver package over sourcing parts separately
  • Shooters building a .308 rifle with Aero Precision M5 lower receiver compatibility

Specifications

Blade FinishBlk
Carbine Receiver ExtensionIncluded
Compatibilitystandard AR308 components and magazines
Lower Parts KitIncluded
M5 Carbine Buffer And SpringIncluded
M5 Stripped Lower ReceiverIncluded
Material7075-T6 Aluminum
Moe Slar Carbine StockIncluded
Moe Slar GripIncluded
Receiver TypeM5 Complete Lower Receiver

Pros

  • Complete lower receiver for custom big-bore AR builds.
  • Includes MOE SL grip and MOE SL carbine stock.
  • Comes with lower parts kit, receiver extension, buffer, and spring.
  • Works with standard AR308 components and magazines.
  • Machined from 7075-T6 aluminum enhanced forging.
  • Aero Precision M5 lower receiver platform.

Considerations & Trade-offs

  • Designed for a custom big-bore AR build, so it is not a universal lower receiver and is intended for .308/AR308-style compatibility.
  • The included MOE SL grip and MOE SL carbine stock are part of the package, which adds value but also means the setup is already partially defined rather than fully stripped for a completely custom furniture choice.
  • It includes a carbine receiver extension, buffer, and spring, so buyers planning a different buffer system will need to account for those included components.
  • The lower is built from 7075-T6 aluminum and described as an enhanced forging, but the listing does not provide additional performance details beyond compatibility with standard AR308 components and magazines.

Suggested Comparisons

  • AR-10 / .308 lower receiver assemblies
  • Stripped lower receivers for big-bore AR builds
  • Complete lower parts kits and receiver extension assemblies
  • AR-308 stock and grip upgrade kits

Suggested Accessories

  • Lower parts kit
  • Carbine receiver extension
  • Buffer and spring
  • AR308 magazines

Frequently Asked Questions

What comes included with the M5 Complete Lower Receiver package?

The package includes the M5 stripped lower receiver, MOE SLA(R) grip, MOE SLA(R) carbine stock, lower parts kit, carbine receiver extension, and M5 carbine buffer and spring. These parts are installed.

Is this lower receiver intended for a big-bore AR build?

Yes. The product description identifies it as a complete lower for a custom big-bore AR build.

What platform compatibility is listed for this lower receiver?

It is described as working with standard AR308 components and magazines.

What material is the M5 lower receiver machined from?

The description states that the enhanced forging is machined from 7075-T6 aluminum.

Who makes this lower receiver?

The manufacturer listed in the provided data is Aero Precision.