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Aero Precision

Ar .308 M5 Carbine Buffer Tube Kit - M5 (.308) Carbine Buffer Kit For Ar-308 Black

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

Ar .308

M5 carbine buffer tube kit

Six-position Buffer

Tube accepts the stock of

Buffer Tube

Is machined from 7075-T6 aluminum

Includes .308

Buffer, spring, end plate, and

Total Kit

Weight is 10.2 ounces

$82.99
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SKU: 100026523

Overview

Built for an AR-style .308 rifle build, this carbine buffer kit provides the core components needed to complete the rear of the system with an aftermarket stock of your choice. The kit includes a buffer tube with six stock positions, along with a .308 buffer, spring, end plate, and castle nut, making it a practical choice for builders assembling a .308 setup. Its 7075-T6 aluminum construction and 10.2-ounce total weight reflect a straightforward, purpose-driven package for a custom rifle project.

Why Hunters Choose the Aero Precision

Includes Buffer

Tube, .308 buffer, spring, end

Six-position Buffer

Tube supports adjustable stock setup

Machined From

7075-T6 aluminum

Ar-style .308

Rifle builds

Builder Only

Needs to add an aftermarket

Key Features

  • AR .308 M5 carbine buffer tube kit for AR-style .308 rifle builds
  • Six-position buffer tube accepts the stock of your choice
  • Buffer tube is machined from 7075-T6 aluminum
  • Includes .308 buffer, spring, end plate, and castle nut
  • Total kit weight is 10.2 ounces
  • Made in the USA by Aero Precision

Best Used For

  • AR-style .308 builders needing a carbine buffer kit with stock-ready adjustment positions
  • Shooters assembling a .308 rifle and sourcing the buffer tube, buffer, spring, end plate, and castle nut
  • Builders who want a complete buffer tube kit before selecting an aftermarket stock
  • Users looking for a black M5 .308 carbine buffer kit for a custom AR-308 setup

Pros

  • Includes the buffer tube, .308 buffer, spring, end plate, and castle nut.
  • Six-position buffer tube supports adjustable stock setup.
  • Machined from 7075-T6 aluminum.
  • Designed for AR-style .308 rifle builds.
  • Builder only needs to add an aftermarket stock to complete the setup.
  • Total kit weight is 10.2 ounces.

Considerations & Trade-offs

  • This is a buffer tube kit only, so an aftermarket stock is still required to complete the setup.
  • The tube offers six stock positions, which provides adjustment but is limited to that fixed range.
  • The kit is specific to AR .308 M5 carbine builds, so it is not a universal buffer solution for other platforms.
  • At 10.2 ounces total, it adds a defined amount of weight to the build that should be considered during overall rifle setup.

Suggested Comparisons

  • AR-10/.308 lower receiver parts kits
  • AR-style rifle stocks
  • AR carbine buffer tubes
  • AR-308 buffer and spring kits

Suggested Accessories

  • AR-308 stock
  • Castle nut wrench
  • Armorer's wrench
  • Buffer spring

Frequently Asked Questions

What is included in the M5 .308 Carbine Buffer Tube Kit?

The kit includes the buffer tube, a .308 buffer, spring, end plate, and castle nut. An aftermarket stock is still needed to complete the setup.

Is this buffer tube kit intended for an AR-15 or AR-308 build?

It is described as an AR .308 M5 Carbine Buffer Tube Kit for an AR-style .308 rifle build.

How many stock positions does the buffer tube offer?

The buffer tube has six separate positions.

What material is the buffer tube made from?

The buffer tube is machined from 7075-T6 aluminum.

Who makes this buffer tube kit, and where is it described as being built?

The manufacturer is Aero Precision, and the description says it is designed and built in the USA.