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Questions & Answers
I have an AR chambered in 7.62x39 but the barrel threads is 5/8x24. And it says that the .308 caliber thread is the 5/8x24. Can I use the .308 instead Expert Answer

No, because 7.62x39mm bullets are commonly up to .311 inches in diameter.

by Julia, Gear Expert, February 5, 2021
I bought the 556 hex brake for my daniel defense ddm4v7 and it's 1/2 28 tpi.Thats also what the muzzle brake says. Some reason it doesn't fit. Help me Manufacturer Answer

Please contact the Phase 5 customer service department regarding your specific issue. The thread pitch for the FATman Hex Brake is 1/2x28TPI, so it should work with that barrel.

by Phase 5 WSI, Manufacturer, November 27, 2024
Customer Reviews
Helpful Positive Review Absolutely love it! by JC, Verified Owner, December 6, 2023
My favorite brake to date. As soon as I start shooting the heads start turning and people are coming over to see what in the world I am shooting lol. If you like attention while youre shooting then you'll love this thing. Very fun to shoot with.
1/1 found this helpful
Helpful Positive Review Works awesome by Maximiliano Garcia, Verified Owner, April 7, 2018
This brake is on the pricy side but it works excellent. It slips over the barrel about an inch and is pretty aggressive looking. It does come with a crush washer and pretty easy to get the timing done.
9/9 found this helpful
Helpful Positive Review Sba4 is both sturdy and stylish by Conchubine, October 2, 2020
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Helpful Positive Review Phase 5 Fatman by Troskins, December 13, 2018
Awesome, Awesome and Awesome all the way around! Completed my rifle nicely. Looks amazing and works exceptionally well! I love all the Phase 5 products... will continue to upgrade my rifle with their products. A+ ���
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Helpful Positive Review worth it, wont be dissapointed by V, Verified Owner, February 9, 2022
Looks amazing:) can’t wait to take it out to the range. Plus it’s better priced here than at wing-tactical. It feels sturdy and the beastly look it gives. I love this thing. It’ll definitely make your piece look modern.
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Helpful Positive Review Can't go wrong with a fatman by Dominik, February 18, 2019
Brutal , great looking muzzle brake, will hide nicely under free float handguard. People shooting next to you will hate you because blast will go right into their faces. Anyway it looks bada## , finish could be a little better but let's not be picky,...
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Product Info for Phase 5 Weapon Systems Inc Fatman HexBrakes

Install this Phase 5 Weapon Systems Inc Fatman HexBrake to reduce your weapon's recoil to enhance your precision at any range. This is because these Phase 5 Weapon Systems Inc Muzzle Brakes & Compensators feature two large ventilated baffle sections that divert muzzle blast in a manner that steadies your aim for quicker, more accurate follow-up shots on target. The Phase 5 Weapon Systems Inc Fatman HexBrake Muzzle Device is built tough with a Mil-Spec parkarized finish to boost its resistance to corrosion and wear, greatly extending its service life. Get the Phase 5 Weapon Systems Inc Fatman HexBrake w/ Crush Washer to mitigate recoil and gain better control of your firearm.image

WARNING: California`s Proposition 65

Specifications for Phase 5 Weapon Systems Inc Fatman HexBrakes:

Manufacturer: Phase 5 Weapon Systems Inc
Color: Black
Finish: Parkerized
Length: 3 in
Weight: 6 oz
Included Accessories: Crush Washer is included
Condition: New

Features of Phase 5 Weapon Systems Inc Fatman HexBrake:

  • Finish: Mil-Spec Parkerized
  • Includes crush washer
  • 2 large (FAT) ventilated baffle sections and chambers create the compensation needed to reduce the overall recoil felt by the shooter
  • Includes two top ports machined at a 20 Deg. forward directed angle

Package Contents:

  • Phase 5 Weapon Systems Inc Fatman HexBrakes
  • Crush washer

Phase 5 Weapon Systems Inc Fatman HexBrakes Orderable Models

List of Orderable Models

Phase 5 Weapon Systems Inc Fatman Hex Brake - 7.62X51 / .308 / 300Blk 5/8 - 24 Tpi, Black, FATMAN-5/8-24 , MPN: FATMAN-5/8-24 , UPC: 813318021496 , Code: 1U8-BMB-FMHB-FATMAN-5-8-24
Phase 5 Weapon Systems Inc Fatman Hex Brake, 9mm / 7.62x39 / 6.8mm - 1/2 - 28 TPI, Black, FATman-1/2-28 9mm , MPN: FATman-1/2-28 9mm , UPC: 813318024480 , Code: 1U8-BMB-FMHB-FATMAN-1-2-28-9MM
Phase 5 Weapon Systems Inc Fatman Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, FATMAN-556 , MPN: FATMAN-556 , UPC: 813318021502 , Code: 1U8-BMB-FMHB-FATMAN-556
Phase 5 Weapon Systems Inc Fatman Hex Brake - 9Mm / 7.62X39 / 6.8Mm - 1/2 - 36 Tpi, Black, FATMAN-9mm , MPN: FATMAN-9mm , UPC: 813318021540 , Code: 1U8-BMB-FMHB-FATMAN-9MM

Phase 5 Weapon Systems Inc Fatman HexBrakes Unavailable & Discontinued Models

List of Unorderable Models

USED Phase 5 Weapon Systems Inc Fatman Hex Brake - 7.62X51 / .308 / 300Blk 5/8 - 24 Tpi, Black, FATMAN-5/8-24, EDEMO1, Used, Condition Fair, Installed/Mounted , MPN: FATman-5/8-24-EDEMO1 , Code: 1U8-BMB-FMHB-FATMAN-5-8-24-EDEMO-IN-D
USED Phase 5 Weapon Systems Inc Fatman Hex Brake, 9mm / 7.62x39 / 6.8mm - 1/2 - 28 TPI, Black, FATman-1/2-28 9mm, EDEMO1, Used, Condition Fair , MPN: FATman-1/2-28 9mm-EDEMO1 , Code: 1U8-BMB-FMHB-FATMAN-1-2-28-9MM-EDEMO1

Proposition 65 Warning for California Consumers

For more information go to www.p65warnings.ca.gov

Notification

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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