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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.
Based on build data

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Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Fortis Light Weight K1 Castle Nut and End Plate Black, Flat Dark Earth - LEBLKK1FDE | 19 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 19 | |
| Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension | 18 | |
| Strike Industries Extended Bolt Catch | 18 | |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | 15 | |
| 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% |
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