4
4kinHawaiineiwish it had X
Reviewed on April 26, 2026
machining is clean. wish the finish was a touch darker but its still a great piece
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Expo Arms H2 Ar-15 Carbine Buffer With Flat Dark Earth Bumper
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Expo Arms
Overview
The Expo Arms H2 AR-15 Carbine Buffer is designed specifically for carbine-length gas systems, providing the necessary weight to ensure reliable cycling and performance in your build. Its design helps to absorb recoil and reduce wear on your rifle's components, making it an essential part of a well-functioning AR-15 setup. This buffer commonly appears in builds featuring a mid-length gas system and chambered in 5.56 NATO, optimizing performance for those configurations.
Specifications
MPNXP-H2B-AR15
Buffer WeightCarbine
PlatformAR-15
TypeCarbine
Frequently Built With
Based on build data
Timber Creek Outdoors Ambidextrous Safety Selector - Black
Strike Industries Extended Bolt Catch
Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension
Fortis Light Weight K1 Castle Nut and End Plate Black, Flat Dark Earth - LEBLKK1FDE
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
80%
AR-1580%
AR-1020%
CaliberBased on real build data showing which calibers builders choose alongside this product.
100%
5.56 NATO100%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
57.1%
Mid-Length57.1%
Carbine28.6%
Pistol14.3%
| Product | Category | Times Built Together |
|---|---|---|
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 20 | |
| Strike Industries Extended Bolt Catch | 20 | |
| Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension | 19 | |
| Fortis Light Weight K1 Castle Nut and End Plate Black, Flat Dark Earth - LEBLKK1FDE | 19 | |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | 17 | |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | 14 |
| Platform | Percentage |
|---|---|
| AR-15 | 80% |
| AR-10 | 20% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 57.1% |
| Carbine | 28.6% |
| Pistol | 14.3% |
Builds Featuring This Part
See all 7 →Builds in the community that include the Expo Arms H2 Ar-15 Carbine Buffer With Flat Dark Earth Bumper
| Build | Parts | Total |
|---|---|---|
 | 35 | $3316.53 |
 | 21 | $1949.49 |
 | 32 | $2346.34 |
 | 30 | $3069.87 |
 | 28 | $4689.99 |
 | 29 | $2086.86 |
 | 22 | $1535.62 |
Customer reviews
4.0out of 5
1 global rating