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Aero Precision

Ar .308 Buffer Springs - Ar .308 Rifle Buffer Spring Ss

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

M5 .308

Buffer spring for new builds

Carbine Spring

A collapsible buttstock

Rifle Spring

A fixed buttstock

Rifle Spring

.308 carbines and collapsible stocks

Made Usa

$8.99
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SKU: 100054355

Overview

Built for .308 AR setups, this buffer spring is intended for either a new build or as a replacement for a worn part. The available M5 versions are matched to stock configuration, with one option for carbines using a collapsible buttstock and another for rifles with a fixed buttstock. It is a straightforward component choice for maintaining the correct setup on compatible .308 AR platforms. The rifle spring is not intended for .308 carbines with a collapsible stock.

Why Hunters Choose the Aero Precision

Suitable New

Builds or replacing worn buffer

Available Carbine

Rifle versions for different .308

.308 Ars

Either collapsible or fixed buttstocks

Made Usa

Clear Fitment

Note helps avoid using the

Key Features

  • M5 .308 buffer spring for new builds or replacing worn parts
  • Carbine spring fits .308 ARs with a collapsible buttstock
  • Rifle spring fits .308 ARs with a fixed buttstock
  • Rifle spring will not work with .308 carbines and collapsible stocks
  • Made in the USA
  • Manufactured by Aero Precision

Best Used For

  • Builders assembling a .308 AR with a collapsible buttstock and needing the carbine buffer spring
  • Owners replacing a worn buffer spring in a .308 AR carbine setup
  • Shooters configuring a .308 AR with a fixed buttstock and requiring the rifle buffer spring
  • Users seeking a direct replacement part for an existing M5 .308 build
  • Buyers who need a straightforward Aero Precision buffer spring for .308 AR compatibility

Pros

  • Suitable for new builds or replacing worn buffer springs.
  • Available in carbine and rifle versions for different .308 AR setups.
  • Designed for .308 ARs with either collapsible or fixed buttstocks.
  • Made in the USA.
  • Clear fitment note helps avoid using the wrong spring configuration.

Considerations & Trade-offs

  • Compatibility depends on stock type: the carbine spring is for .308 ARs with a collapsible buttstock, while the rifle spring is for .308 ARs with a fixed buttstock.
  • The rifle spring will not work in .308 carbines with a collapsible stock, so confirming your setup before ordering is important.
  • This is a replacement/build component rather than a complete assembly, so it is intended for users who already know the correct buffer spring configuration for their rifle.

Suggested Comparisons

  • .308 AR buffer springs
  • .308 AR buffer tube components
  • AR-10/M5 replacement parts
  • Fixed-stock or collapsible-stock rifle spring options

Suggested Accessories

  • Buffer tube assembly
  • Collapsible buttstock
  • Fixed buttstock
  • Replacement springs

Frequently Asked Questions

Which .308 AR setups is this buffer spring intended for?

The product is listed for .308 ARs in two configurations: an M5 .308 carbine buffer spring for use with a collapsible buttstock, and an M5 .308 rifle buffer spring for use with a fixed buttstock.

Can I use the rifle spring in a .308 carbine with a collapsible stock?

No. The product information specifically notes that the rifle spring will not work with .308 carbines that use a collapsible stock.

Is this meant for a new build or only as a replacement part?

It is described as suitable for either a new build or as a direct replacement for worn out parts.

Who makes this buffer spring?

The manufacturer listed is Aero Precision.

Is the product made in the USA?

Yes. The source data states that it is made in the USA.