LBE Unlimited AR-10 .308 Rifle Length Buffer, Gold

LBE Unlimited
MPN:
ARBF308R
UPC:
765857617725
$18.69
(1 review)
Current Stock:
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The LBE Unlimited AR .308 Rifle Length Buffer is a precision-engineered drop-in recoil management solution designed specifically for AR-10, LR-308, and SR-25 platform rifles, delivering reliable cycling performance with zero gunsmithing required.

  • Compatible with AR-10, LR-308, and SR-25 rifle platforms
  • Drop-in installation with no modifications or gunsmithing needed
  • Rifle-length design at 5.285" for fixed, non-collapsible stock configurations
  • Sturdy aluminum body paired with precision steel weights for durability
  • Optimized 5.4 oz weight for smooth, consistent bolt carrier cycling
  • Proudly manufactured in the USA by LBE Unlimited

Who This Is For

This buffer is ideal for AR-10 and LR-308 owners running fixed or non-collapsible rifle stocks who want a reliable, American-made drop-in replacement buffer. Whether you're building a new precision .308 rifle or refreshing a worn buffer on an existing setup, this is a straightforward upgrade that supports consistent semi-automatic function under a variety of .308 WIN loads.

LBE Unlimited AR .308 Rifle Length Recoil Buffer Gold - aluminum body with steel weights

Specifications

Brand LBE Unlimited
Model AR .308 Rifle Length Buffer
Compatible Platforms AR-10, LR-308, SR-25
Buffer Length 5.285"
Weight 5.4 oz
Body Material Aluminum
Weight Material Steel
Stock Compatibility Fixed / Non-Collapsible Only
Country of Origin USA
Installation Drop-In, No Modifications Required

Frequently Asked Questions

Will this buffer work with my collapsible or adjustable stock setup?

No — this is a rifle-length buffer measuring 5.285" and is designed exclusively for use with fixed, non-collapsible rifle buffer tubes found on AR-10, LR-308, and SR-25 platforms. If your rifle uses a carbine or adjustable stock with a shorter buffer tube, you will need a carbine-length buffer instead.

Do I need to modify my rifle to install this buffer?

Not at all. The LBE .308 Rifle Length Buffer is a true drop-in replacement part. Simply remove your existing buffer from the rifle buffer tube and install this one in its place — no tools, drilling, or gunsmithing required. It's designed to factory fit dimensions for AR-10 and LR-308 pattern rifles.

How does buffer weight affect the performance of my .308 AR?

Buffer weight plays a key role in managing bolt carrier group (BCG) velocity during the firing cycle. A properly weighted buffer — like this 5.4 oz rifle-length unit — helps slow the BCG enough to allow reliable extraction and feeding while reducing felt recoil and wear on your components. Running too light a buffer in a .308 platform can cause battering of the lower receiver, while too heavy a buffer may cause short-stroking and failures to feed.

Reviews

  • 5
    AR10 buffer

    Posted by Maston Lyons on Apr 28th 2026

    I buy a lot of parts trying to find a good supplier and Goodland seems to be one of the best!