Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Ar .308 M5 Magazine Catch Button Extended - M5 Extended Magazine Catch Button For Ar-308 Black

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

Drop-in Replacement

For the standard lower receiver

Extended Design

The M5 Lower Receiver

Made From

Aluminum

Ar-308 Use

Black Finish

$8.99
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SKU: 100054409

Overview

This extended magazine catch button is intended as a drop-in replacement for a standard lower receiver magazine catch button, with added length to sit correctly when paired with an M5 Lower Receiver. It is made from aluminum and offered by Aero Precision. For hunters and shooters assembling or maintaining an AR-308 platform, it provides a straightforward fitment-focused part rather than a feature-heavy upgrade. Its role is specific, making it a practical choice when the receiver setup calls for the extended button profile.

Why Hunters Choose the Aero Precision

Drop-in Replacement

For the standard lower receiver

Extended Design

M5 Lower Receiver

Made From

Aluminum for a lightweight, simple

Black Finish

Matches the listed product color

Produced Aero

Precision for M5 platform compatibility

Key Features

  • Drop-in replacement for the standard lower receiver magazine catch button.
  • Extended design protrudes the proper distance with the M5 Lower Receiver.
  • Made from aluminum.
  • Designed for AR-308 use.
  • Black finish.

Best Used For

  • Owners of Aero Precision M5 lower receivers needing a proper-fit magazine catch button
  • Builders replacing a standard lower receiver magazine catch button with an extended version
  • AR-308 users seeking a drop-in magazine catch button for compatible lower receiver setups
  • Shooters wanting an aluminum replacement part for a black AR-308 build

Specifications

ColorBlack
CompatibilityM5 Lower Receiver
Country Of OriginAero Precision
Extended Magazine Catch ButtonYes
LengthLonger than standard to protrude the proper distance
MaterialAluminum
Replacement TypeDrop-in replacement for the standard lower receiver magazine catch button

Pros

  • Drop-in replacement for the standard lower receiver magazine catch button.
  • Extended design is made to protrude the proper distance with M5 Lower Receiver.
  • Made from aluminum for a lightweight, simple component.
  • Black finish matches the listed product color.
  • Produced by Aero Precision for M5 platform compatibility.

Considerations & Trade-offs

  • Designed specifically to protrude the proper distance with the M5 Lower Receiver, so it is not a universal fit for every AR-308 setup.
  • It is a drop-in replacement for the standard lower receiver magazine catch button, which means it is a component-level upgrade rather than a complete magazine catch assembly.
  • Made from aluminum, so buyers looking for a different material should verify compatibility with their build requirements.
  • The product details provided do not include broader compatibility notes beyond the M5 Lower Receiver, so fit should be confirmed before purchase.

Suggested Comparisons

  • AR-308 lower receiver parts
  • Magazine catch buttons
  • Lower receiver small parts kits
  • AR-308 build components

Suggested Accessories

  • AR-308 lower receiver
  • Magazine catch spring
  • Magazine catch assembly
  • Lower receiver parts kit

Frequently Asked Questions

What is this part used for on an AR-308/M5 build?

It is an extended magazine catch button, designed as a drop-in replacement for the standard lower receiver magazine catch button.

Is this button intended for a specific lower receiver?

Yes. The description says it is longer so it protrudes the proper distance when used with the Aero Precision M5 Lower Receiver.

Does this come as a complete magazine catch assembly?

No. The source only identifies this as the extended magazine catch button, not a full magazine catch assembly.

What material is the button made from?

The product is made from aluminum.

Will this fit any AR-308 lower receiver?

The source only states compatibility with the Aero Precision M5 Lower Receiver. Fitment for other lowers is not specified.