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Phase 5 Weapon Systems Inc Littleboy Hex Brakes
As Low As $99.00 Save Up to 24%
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Most Helpful Positive Review Hex Brakes
I have both the Big Boy on my 308 and now a Little Boy on my 9mm CZ Scorpion. Nothing but good things to say from reduced recoil to looking killer on your rifle. Not a cheap product made in the USA has some weight to it and a sound that will put a smile on your face. Optics planet shipped fast.
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phase5 hex fat hoy

by J, Verified Owner from TX, United States Written on May 31, 2023
Built an AR carbine using all phase 5 accessories and this muzzle device topped it off , looks awesome along with excellent quality, and all my phase 5 accessories came from OPTICS PLANET . Handgaurd, safty selector , muzzle device, mag release.
Would recommend: Yes
Was it helpful to you? Yes | No

Great Brake

by ChrisK, from WA, United States Written on August 27, 2022
Running this on my 10.5" Noveske 5.56 barrel. Accuracy is not impacted, recoil is somewhat diminished, just feel sorry for those on the side of me. Gives the rifle a very "beefy" look. Like others have said, it's not short but works well. Had this on another build as well. no regrets.
Pros:
  • Looks
  • diminished recoil
  • does not impact accuracy
Cons:
  • weight
  • size
Best Used for:
  • shooting away from others
Would recommend: Yes
Was it helpful to you? Yes | No

Littleboy hex break

by Brunop320, from TX, United States Written on February 27, 2022
P5WS-LHB is an amazing breaks,1.5 in diameter fix in great inside the handguard that what I like. Like the design that caught my eye. Shooting its a little loud but it fun to feel the heat from the Blast.
Pros:
  • Easy to install great quality and looks awesome and overall great performer.
  • Easy to install, come with a washer
Cons:
  • No cons, just requires setup
  • No cons in my opinion
Best Used for:
  • In longer barrel I'm using it on 5" barrel have to do something trimming in the back of the breaker
Would recommend: Yes
0 of 2 found the following review helpful.
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great product

by Robert Shields, Verified Owner from CA, United States Written on January 26, 2021
I like this brake, it looks awesome and fills the inside of my rail nicely. The only thing I don’t like is the length isn’t the true length. It’s half shroud half brake. It’s not a huge deal though and I like it. So yeah... 200 characters
Would recommend: Yes
1 of 2 found the following review helpful.
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Very clean look, works great

by ARmed in NY, from NY, United States Written on December 11, 2020
This brake was absolutely perfect for the look I wanted. I have it installed on a CMMG 300 series Mk57 upper chambered in 5.7×28mm. The 5.7 is already a very low recoil round & with the lil boy installed it's like a .22LR! The CMMG 300 series uppers have a 5" barrel with a 4.5" handguard & this brake gives it that perfect clean, continuous look I was looking for while also keeping it as short as possible. The lil boy is 2.5" overall, but the 1st inch of the brake slips over the barrel before engaging the barrels threads, realistcally making it a 1.5" single baffle brake. Also the inner diameter of my handguard is 13/8", & this brake fits perfect, but if ur handguard is thinner than that it will not fit under it...If ur looking for style & functionality & ur trying to keep ur barrel as short as possible this is the brake u wanna get. It's super well made & I think has a phosphate finish or something similar. I will definitely be getting the Fatman, the larger double baffle version of this brake for my next build where length isn't an issue.
Pros:
  • compact
  • Fit & finish
  • Recoil Reduction
  • style and fit
  • Threads recessed 1"
Cons:
  • None
Best Used for:
  • AR15 Pistol builds
Would recommend: Yes
2 of 2 found the following review helpful.
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Looks beautiful and functions great

by Bdf, from NE, United States Written on December 6, 2019
Definitely love the look of this brake on my ar15 pistol. Have it on a 10.5" 7.62x39 and it's helped considerably with the recoil. The brake is very solid and clocked onto the barrel without having to overtightened it and risk breaking the crush washer. The way the muzzle brake overlaps the barrel makes it look like it's a 9" I love it! 10/10 will buy again!!
Would recommend: Yes
2 of 2 found the following review helpful.
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Phase 5 never fails

by Mmbow702, from NV, United States Written on June 28, 2019
My build includes quite a few Phase 5 products. It was a no brainer to trust this Hex brake. Nothing little about the performance of this Little-boy. Its a perfect fit for their LPSN handgaurd as well as anyone else wanting a stylish, but effective approach. Keep in mind, it does overlap the threads of the barrel. For me that was just what I needed.
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Phase 5 Brakes

by Troskins, from AL, United States Written on December 24, 2018
Awesome brake. Looks great and functions exceptionally well! This is the second brake from Phase 5.... my first is a Fatman for my AR-10 and I’ll continue to purchase Phase 5 products. I’ll continue to do business with Optics Planet too!
Would recommend: Yes
2 of 2 found the following review helpful.
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Phase 5 little boy hex brake

by Gus, from CA, United States Written on March 5, 2018
Anything from phase5 is solid..anything ordered from optics planet is a solid deal..I always get the best price plus shipping is fast I usually dont price check if im ordering here as they always have some sort of coupon code
Pros:
  • price value
Cons:
  • None
Would recommend: Yes
1 of 1 found the following review helpful.
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Littleboy Hexbrake

by dmon2793, Verified Owner from TX, United States Written on December 23, 2017
Don't let the name fool you, it is deemed "Littleboy" because there is a larger version, but this piece is bigger than you'd expect. It is very solid, and looks beautiful on my rifle. Recoil is diminished somewhat with this muzzle brake. I would definitely use it on another rifle if I was building a new one.
Would recommend: Yes
2 of 2 found the following review helpful.
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Last updated 2025-11-12 UTC.