AR-308 Marksman (3.25") Collapsible Stock Recoil Buffer

Ar-308 Marksman (3.25") Collapsible Stock Recoil Buffer - Buffer for AR-15 - view 1
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Overview

The AR-308 Marksman Collapsible Stock Recoil Buffer is designed specifically for the AR-10 platform, featuring a carbine weight that helps manage recoil effectively during operation. This buffer's design aids in ensuring reliable cycling, especially in builds utilizing a rifle gas system and chambered in .308 Win. You will commonly find this buffer in precision-oriented builds where stability and recoil management are priorities.

Specifications

MPNRB5005
PlatformAR-10
Buffer WeightCarbine

Available Merchants(6)

Prices checked

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Brownells logo
Brownells
Free shipping
Shipping Speed
In Stock
$154.99
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$155.99
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
Out of Stock
$137.99
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
Out of Stock
$154.99
Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
Out of Stock
$154.99
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
Out of Stock
$154.99

Build history on GunPartPicker

Builders have added the AR-308 Marksman (3.25") Collapsible Stock Recoil Buffer to their builds on GunPartPicker. Since April 2026, it ranks #46 of the 209 buffers builders have added. Builds with this buffer are mostly chambered in .308 Win (67%, then .50 Beowulf 11%), split between pistol-length (50%) and rifle-length (50%) gas systems, and mostly AR-10 (75%, then AR-15 25%).

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, but today 2 of the 6 retailers we track have it in stock. Prices barely moved in October 2026, holding around $154.99, with no real sale all month. Buying today, the lowest price is $154.99 at Brownells, which matches the best price we saw in October.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

75%
AR-1075%
AR-1525%

Caliber

66.7%
.308 Win66.7%
.50 Beowulf11.1%
300 Blackout11.1%
7.62x51 NATO11.1%

Gas System

50%
Pistol50%
Rifle50%

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