Expo Arms

Expo Arms AR-15 Carbine Buffer With Red Bumper

Expo Arms Ar-15 Carbine Buffer With Red Bumper - Buffer for AR-15 - view 1
Expo Arms Ar-15 Carbine Buffer With Red Bumper - Buffer for AR-15 - view 2
Expo Arms Ar-15 Carbine Buffer With Red Bumper - Buffer for AR-15 - view 3
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Expo Arms

Overview

The Expo Arms AR-15 Carbine Buffer is designed specifically for AR-15 platforms, featuring a carbine weight that ensures reliable cycling and optimal performance in your build. This buffer is essential for managing the recoil impulse in carbine-length gas systems, particularly with 5.56 NATO calibers, allowing for smoother operation and improved accuracy. You’ll commonly find this buffer in builds that prioritize reliability and function in standard carbine configurations.

Specifications

MPNXP-STDB-AR15
Buffer WeightCarbine
PlatformAR-15
TypeCarbine

Available Merchants(1)

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$9.99
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Build history on GunPartPicker

Builders have been adding the Expo Arms AR-15 Carbine Buffer With Red Bumper to their builds on GunPartPicker since January 2026. All time, it ranks #29 of the 195 buffers builders have added. Builds with this buffer are mostly chambered in 5.56 NATO (69%, then .223 Wylde 12%), split between mid-length (42%) and carbine-length (34%) gas systems, and mostly AR-15 (92%).

Today the one retailer we track has it in stock. Buying today, the lowest price is $9.99 at Primary Arms.

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Frequently Built With

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

Rise Armament AR-15 Magazine Release Button - Rise Red

Rise Armament AR-15 Magazine Release Button - Rise Red

Magazine Release$8in 32% of them
Strike Industries Carbine Length Pistol Buffer Tube - Red

Strike Industries Carbine Length Pistol Buffer Tube - Red

Buffer Tube$50in 31% of them
Strike Industries Extended Bolt Catch

Strike Industries Extended Bolt Catch

Bolt Catch$15in 16% of them
Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Trigger$159in 11% of them
Aero Precision M4A1 Clone Lower Receiver

Aero Precision M4A1 Clone Lower Receiver

Lower Receiver$130 · out of stockin 9% of them
Timber Creek Outdoors AR-15 Takedown Pin Set - Red

Timber Creek Outdoors AR-15 Takedown Pin Set - Red

Takedown Pin$10in 31% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

91.7%
AR-1591.7%
AR-106.3%
AR-92.1%

Caliber

68.9%
5.56 NATO68.9%
.223 Wylde11.5%
300 Blackout8.2%
.308 Win6.6%
.223 Remington1.6%
Other3.2%

Gas System

41.5%
Mid-Length41.5%
Carbine34.1%
Pistol17.1%
Rifle7.3%

Builds Featuring This Part

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Builds in the community that include the Expo Arms Ar-15 Carbine Buffer With Red Bumper

BuildPartsTotal
for the family fun 14.5" build
for the family fun 14.5"		30$3724.95
11.5" build build
11.5" build		22$991.00
Hog hunter 10.5" 5.56 build
Hog hunter 10.5" 5.56		25$905.71
14.5" build build
14.5" build		30$3724.95
for hunting hogs 16" build
for hunting hogs 16"		28$3515.18
PDW 16" 5.56 build
PDW 16" 5.56		21$642.95

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