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Phase 5 Weapon Systems
Overview
The Phase 5 FATman Muzzle Brake is designed for .300 Blackout builds, featuring a 5/8x24 thread pitch that allows for easy installation on compatible barrels. This muzzle brake effectively reduces recoil and muzzle rise, making it a great choice for maintaining control during rapid fire. You’ll commonly find this component in carbine gas system setups, enhancing performance and accuracy for your .300 Blackout rifle.
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Based on build data

Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Gas Tube
Spikes Tactical Made in USA Ejection Port Door for AR-15 Style Rifle - SED7002
Dust Cover
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Radian Forward Assist - 7075 Aluminum - Black
Forward Assist
Magpul AFG-2 Angled Fore Grip - Black
ForegripAggregated 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 | 113 |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 100 |
| Spikes Tactical Made in USA Ejection Port Door for AR-15 Style Rifle - SED7002 | Dust Cover | 83 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 80 |
| Radian Forward Assist - 7075 Aluminum - Black | Forward Assist | 79 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 73 |
| Platform | Percentage |
|---|---|
| AR-15 | 87.3% |
| AR-10 | 10.3% |
| AR-9 | 2.4% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.6% |
| .223 Wylde | 15.3% |
| 300 Blackout | 5.3% |
| .308 Win | 4.1% |
| 9mm | 1.5% |
| 6mm ARC | 1.5% |
| .450 Bushmaster | 1% |
| 6.5 Grendel | 0.9% |
| 7.62x39mm | 0.7% |
| .458 SOCOM | 0.7% |
| .223 Remington | 0.7% |
| .350 Legend | 0.5% |
| .50 Beowulf | 0.3% |
| 7.62x51 NATO | 0.3% |
| .204 Ruger | 0.2% |
| 6.5 Creedmoor | 0.2% |
| 6.8 SPC II | 0.2% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 47.6% |
| Carbine | 28.5% |
| Rifle | 13.5% |
| Pistol | 8.1% |
| Blowback | 1.5% |
| Proprietary | 0.4% |
| Intermediate | 0.4% |
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