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Expo Arms
Overview
The Expo Arms Mid-Length Gas Tube is designed specifically for mid-length gas systems, providing an optimal gas flow for reliable cycling in your AR-15. Made from polished stainless steel, this gas tube not only enhances the aesthetics of your build but also offers durability and resistance to corrosion. It is commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, ensuring smooth operation and consistent performance.
Based on build data

Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Radian Forward Assist - 7075 Aluminum - Black
Forward Assist
Spikes Tactical Made in USA Ejection Port Door for AR-15 Style Rifle - SED7002
Dust Cover
Wilson Combat Ar-15 Billet Upper Receiver
Upper Receiver
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15
HandguardAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 147 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 95 |
| Radian Forward Assist - 7075 Aluminum - Black | Forward Assist | 86 |
| Spikes Tactical Made in USA Ejection Port Door for AR-15 Style Rifle - SED7002 | Dust Cover | 83 |
| Wilson Combat Ar-15 Billet Upper Receiver | Upper Receiver | 76 |
| Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15 | Handguard | 72 |
| Platform | Percentage |
|---|---|
| AR-15 | 87.6% |
| AR-10 | 9.9% |
| AR-9 | 2.5% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 65.3% |
| .223 Wylde | 15.7% |
| 300 Blackout | 7.8% |
| .308 Win | 3.7% |
| 6mm ARC | 1.4% |
| .450 Bushmaster | 1.1% |
| 6.5 Grendel | 0.9% |
| .458 SOCOM | 0.8% |
| 9mm | 0.8% |
| .223 Remington | 0.6% |
| 7.62x39mm | 0.6% |
| 7.62x51 NATO | 0.3% |
| .350 Legend | 0.3% |
| .204 Ruger | 0.2% |
| .22 ARC | 0.2% |
| .45 ACP | 0.2% |
| .50 Beowulf | 0.2% |
| 6.5 Creedmoor | 0.2% |
| 6.8 SPC II | 0.2% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 46.4% |
| Carbine | 27% |
| Rifle | 15% |
| Pistol | 10.5% |
| Blowback | 0.5% |
| Intermediate | 0.3% |
| Proprietary | 0.2% |
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