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Faxon Firearms
Overview
The Faxon Firearms Adjustable 3 Screw Low Profile Gas Block is designed for builders looking to fine-tune their gas system. With a .625-inch diameter, it fits snugly under most handguards, while its adjustable feature allows for precise control of gas flow, helping to optimize cycling and performance based on your specific ammunition and setup. This gas block is commonly found in mid-length and carbine builds where customization of the gas system is essential for reliable operation.
Based on build data

Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Gas Tube
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
Aero Precision Stainless Steel Gas Tube - Mid-Length
Gas Tube
Wilson Combat Ar-15 Billet Upper Receiver
Upper ReceiverAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 127 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 90 |
| 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 | 82 |
| Aero Precision Stainless Steel Gas Tube - Mid-Length | Gas Tube | 73 |
| Wilson Combat Ar-15 Billet Upper Receiver | Upper Receiver | 72 |
| Platform | Percentage |
|---|---|
| AR-15 | 87.9% |
| AR-10 | 9.7% |
| AR-9 | 2.3% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.1% |
| .223 Wylde | 16.1% |
| 300 Blackout | 6.4% |
| .308 Win | 3.9% |
| 6mm ARC | 1.4% |
| .450 Bushmaster | 1.1% |
| 6.5 Grendel | 0.8% |
| .458 SOCOM | 0.8% |
| 7.62x39mm | 0.6% |
| .223 Remington | 0.6% |
| 9mm | 0.5% |
| .350 Legend | 0.3% |
| 7.62x51 NATO | 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 | 47.3% |
| Carbine | 27.6% |
| Rifle | 15.1% |
| Pistol | 9.1% |
| Intermediate | 0.4% |
| Blowback | 0.4% |
| Proprietary | 0.2% |
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