Receiver PartsAero PrecisionSold by Brownells

Aero Precision

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

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

Complete Lower

Receiver for custom big-bore AR

Includes M5

Installed parts kit

Upgraded Moe

MOE SL grip and MOE

Includes Carbine

Receiver extension, buffer, and spring

Machined From

7075-T6 aluminum

$429.99
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SKU: 100049026

Overview

Built as a ready-to-use foundation for a custom big-bore AR .308 setup, this complete lower receiver brings together the lower receiver, grip, stock, lower parts kit, receiver extension, buffer, and spring in one assembled package. It is intended for hunters and shooters who want to streamline the lower-build process while keeping compatibility with standard AR308 components and magazines. The included MOE SL grip and SL-S carbine stock add a familiar, practical setup for field use or range work. As a complete lower, it offers convenience and consistency, though it is still only one part of a full rifle build.

Why Hunters Choose the Aero Precision

Complete Lower

Receiver provides a ready base

Includes Moe

SL Grip and MOE SL-S

Supplied Lower

Lower parts kit, receiver extension,

Designed Work

Standard AR308 components and magazines

Machined From

7075-T6 aluminum for the M5

Key Features

  • Complete lower receiver for custom big-bore AR builds
  • Includes M5 stripped lower receiver with installed parts kit
  • Upgraded with MOE SL grip and MOE SL-S carbine stock
  • Includes carbine receiver extension, buffer, and spring
  • Machined from 7075-T6 aluminum
  • Works with standard AR308 components and magazines

Best Used For

  • Custom AR .308 builders wanting a complete lower ready for assembly
  • Hunters planning a big-bore AR platform with standard AR308 components and magazines
  • Users who want an Aero Precision lower with included grip, stock, and lower parts kit
  • Shooters building a .308 carbine setup with a carbine receiver extension and buffer system

Specifications

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 GripIncluded
Moear Sl Stm Carbine StockIncluded

Pros

  • Complete lower receiver provides a ready base for a custom big-bore AR build.
  • Includes MOE SL Grip and MOE SL-S Carbine Stock already installed.
  • Supplied with lower parts kit, receiver extension, buffer, and spring.
  • Designed to work with standard AR308 components and magazines.
  • Machined from 7075-T6 aluminum for the M5 lower receiver.
  • Aero Precision M5 complete lower simplifies sourcing multiple build components.

Considerations & Trade-offs

  • Built around Aero’s M5 lower receiver, this is a complete lower rather than a stripped foundation, so it’s less flexible if you want to choose every control and furniture component yourself.
  • The included MOE SL grip and SL-S carbine stock make the setup more ready-to-use, but they also define the feel of the build instead of leaving those choices open.
  • It is described as working with standard AR308 components and magazines, so compatibility is centered on that pattern rather than being universal across all .308-style builds.
  • The product is presented as a big-bore AR base, so it is intended for a specific build direction rather than a general-purpose lower receiver option.

Suggested Comparisons

  • AR-308 lower receiver assemblies
  • Big-bore AR build components
  • Complete lower receiver kits
  • AR platform furniture and lower parts kits

Suggested Accessories

  • AR-308 magazines
  • Carbine buffer components
  • Rifle sling
  • Lower receiver parts kit

Frequently Asked Questions

What comes included with this complete lower receiver package?

The package includes the M5 stripped lower receiver, MOE SL grip, MOE SL-S carbine stock, lower parts kit, carbine receiver extension, and M5 carbine buffer and spring. These parts are installed.

What type of build is this lower receiver intended for?

It is presented as the base for a custom big-bore AR build.

Is this lower compatible with standard AR-308 components and magazines?

Yes. The product description states that it works with standard AR308 components and magazines.

What material is the M5 lower receiver made from?

The description says the custom designed enhanced forging is machined from 7075-T6 aluminum.

Who makes this complete lower receiver?

The manufacturer listed is Aero Precision.