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Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK

Phase 5 Tactical · Muzzle Devices

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Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK
Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK
Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK
Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK

Best price

$120.00at Ammunition Depot

In stock checked Nov 13, 2026

Compare 8 stores

Fits and works with

Caliber
300 Blackout · Shop matching ammo

Specifications

Manufacturer
Phase 5 Tactical

Where to buy

StorePriceAvailabilityBuyAdd to build
Ammunition Depot Best price $120.00checked Nov 13, 2026 In stock Buy at Ammunition Depot
MidwayUSA $120.00checked Nov 13, 2026 In stock Buy at MidwayUSA
GunMag Warehouse $120.99checked Nov 13, 2026 In stock Buy at GunMag Warehouse
Battlehawk Armory $91.73Salechecked Nov 13, 2026 Check store Buy at Battlehawk Armory
GrabAGun $99.99Salechecked Nov 12, 2026 Check store Buy at GrabAGun
AR15Discounts 5% off $120.00checked Nov 12, 2026 Check store Buy at AR15Discounts
Dirty Bird $120.00checked Nov 12, 2026 Check store Buy at Dirty Bird
Rainier Arms Check priceprice on the store's site Check store Buy at Rainier Arms

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $104.10 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$120.00$120.00$120.00
Ammunition Depot$120.00$120.00$120.00
Battlehawk Armory$91.73$91.73$93.53
Dirty Bird$120.00$120.00$120.00
GrabAGun$99.99$99.99$99.99
GunMag Warehouse$120.99$120.99$120.99
MidwayUSA$120.00$104.10$120.00

Since Sep 28, 2026.

About this part

The Phase 5 FATman Hex Brake for 7.62x51/.308/300BLK is a 300 Blackout muzzle device from Phase 5 Tactical. It's sold by 7 stores (3 in stock), from $91.73 to $120.99. The lowest in-stock price in the last 30 days was $104.10 at MidwayUSA.

From the manufacturer


The FATman Hex Brake was created to solve issues faced by many competition shooters and precision rifle builders.The 2 large (FAT) ventilated baffle sections and chambers create the compensation needed to reduce the overall recoil felt by the shooter. The FATman Hex Brake includes two top ports machined at a 20 Deg. forward directed angle. These top ports help direct the energy of the spent gas in a manner that maintains a flat consecutive result shot after shot. The design of the FATman Hex Brake allows the first chamber wall to sit as close to the barrel crown plane as possible. This design element was included to maintain the full accuracy of the barrel. The iconic Phase 5 Hex design gives the FATman Hex Brake the perfect styling that custom gun builders are looking for. - Mil-Spec Black Parkerized finish- Compatibility: 7.62X51/.308/300blk- Length: 3”- Width: 1.26”- Weight: 5.9oz- Threading: 5/8 - 24 TPI (Threads per Inch)- Includes (1) crush washer

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