Phase 5 FATman 5/8-24 Hex Muzzle Brake, .308 Win/7.62x51mm/.300 Blackout, Parkerized Black - FATman-5/8-24
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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.
Specifications
Phase 5 FATman 5/8-24 Hex Muzzle Brake, .308 Win/7.62x51mm/.300 Blackout, Parkerized Black - FATman-5/8-24
Available Merchants(4)
Prices checked
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Build history on GunPartPicker
Builders on GunPartPicker first added the Phase 5 FATman 5/8-24 Hex Muzzle Brake, .308 Win/7.62x51mm/.300 Blackout, Parkerized Black - FATman-5/8-24 to a build in February 2026.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 3 of the 4 retailers we track have it in stock. Prices barely moved in August 2026, holding around $120, so there haven't been real sales lately. Buying today, the lowest price is $120 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 3 builds that include this one
Strike Industries AR Forward Assist With Hex Design Black
Timber Creek Outdoors Billet Dust Cover - Burnt Bronze
Brownells AR-15 Semi Auto Chrome Bolt Carrier Group No Serrations
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Rosco Manufacturing Bloodline 300 Blackout AR-15 Barrel Heavy Pistol - 8.2"
Strike Industries Enhanced AR-15 Low Profile Gas Block - .750"
Builds Featuring This Part
See all 3 →Builds in the community that include the Phase 5 FATman 5/8-24 Hex Muzzle Brake, .308 Win/7.62x51mm/.300 Blackout, Parkerized Black - FATman-5/8-24
| Build | Parts | Total |
|---|---|---|
 | 14 | $3567.71 |
 | 31 | $3026.31 |
 | 32 | $2641.72 |
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