Receiver PartsAero PrecisionSold by Brownells

Aero Precision

M4a1 Clone Lower Receiver - M4a1 Clone Stripped Lower Receiver For Ar-15 Black

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

Custom Engraved

Aero Precision logo on an

Markings Include

Property of U.S.A., MOD M4

Serial Number

Designation included for clone-style presentation

Safe/semi/auto Safety

Selector markings present

Includes Stripped

AR15 Lower Receiver, Gen 2

$129.99
View on Brownells

You'll be taken to Brownells to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: 430103043

Overview

Built for a clone-focused AR-15 project, this stripped lower receiver provides the foundation for a M4A1-style build with period-correct style markings and Aero Precision branding. The engraved details include “Property of U.S.A.,” “MOD M4 CARBINE,” “CAL. 5.56MM,” serial number designation, and Safe/Semi/Auto selector markings, making it suited to builders who want the lower to reflect the look of the original pattern. It comes as a Gen 2 stripped lower receiver with a nylon-tipped tensioning set screw, so it is intended for users assembling a rifle from compatible components. For hunters and shooters who value a clean, purpose-driven build, this is a specialized starting point rather than a complete lower assembly.

Why Hunters Choose the Aero Precision

Custom Aero

Precision logo gives the receiver

Marked Property

Property of U.S.A., MOD M4

Safe/semi/auto Selector

Markings support a more authentic

Includes Stripped

Gen 2 AR15 lower receiver

Nylon Tipped

Tensioning set screw is included

Key Features

  • Custom engraved Aero Precision logo on an AR15 Gen 2 lower receiver
  • Markings include Property of U.S.A., MOD M4 CARBINE, and CAL. 5.56MM
  • Serial number designation included for clone-style presentation
  • Safe/Semi/Auto safety selector markings present
  • Includes a stripped AR15 Lower Receiver, Gen 2
  • Nylon tipped tensioning set screw included

Best Used For

  • M4A1 clone builders seeking a stripped lower with period-style markings and custom engraving
  • AR-15 owners starting a dedicated clone project from a Gen 2 lower receiver base
  • Collectors wanting a receiver with Safe/Semi/Auto selector markings and serial number designation
  • Builders who need a stripped lower receiver and tensioning set screw included
  • Users focused on a black receiver for a military-style M4A1-inspired build

Specifications

Blade FinishBlack
Caliber MarkingCAL. 5.56MM
ColorBlack
Custom Aero Precision LogoIncluded
GenerationGen 2
Included ComponentsStripped AR15 Lower Receiver, Gen 2; Nylon tipped tensioning set screw
MarkingsProperty of U.S.A., MOD M4 CARBINE, CAL. 5.56MM
Receiver TypeStripped AR15 Lower Receiver
Safety Selector MarkingsSafe/Semi/Auto
Serial Number DesignationIncluded

Pros

  • Custom Aero Precision logo gives the receiver a distinctive clone-style appearance.
  • Marked with Property of U.S.A., MOD M4 CARBINE, and CAL. 5.56MM.
  • Safe/Semi/Auto selector markings support a more authentic M4A1-style layout.
  • Includes a stripped Gen 2 AR15 lower receiver for build flexibility.
  • Nylon tipped tensioning set screw is included with the receiver.

Considerations & Trade-offs

  • This is a stripped lower receiver, so it is only the starting point for a build and does not include a complete lower assembly.
  • The clone-specific markings and engraving are the main draw, which may make it less suitable if you want a plain, non-replica appearance.
  • Included components are limited to the stripped Gen 2 lower receiver and nylon tipped tensioning set screw; additional parts will be needed to complete the build.

Suggested Comparisons

  • AR-15 stripped lower receiver
  • M4A1 clone parts
  • AR-15 lower receiver with custom engraving
  • AR-15 lower receiver build component

Suggested Accessories

  • AR-15 lower parts kit
  • AR-15 buffer tube assembly
  • AR-15 stock
  • AR-15 pistol grip

Frequently Asked Questions

What comes included with the M4A1 Clone Lower Receiver?

The listing says it includes a stripped AR15 Lower Receiver, Gen 2, and a nylon tipped tensioning set screw.

What markings are on this lower receiver?

The product description lists custom Aero Precision logo engraving and markings that include: Property of U.S.A., MOD M4 CARBINE, CAL. 5.56MM, serial number designation, and Safe/Semi/Auto safety selector markings.

Is this a complete lower or a stripped lower?

It is a stripped AR15 Lower Receiver, Gen 2. The listing does not describe it as a complete lower.

What is this lower receiver intended for?

The description says it is the perfect base for an M4A1 clone build.

Who makes this lower receiver?

The manufacturer listed is Aero Precision.