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Phase 5 Weapon Systems Inc Littleboy Hex Brakes Up to 24% Off w/ Free Shipping — 4 models

Special offer available for this product. Click here to see!
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi, Black LITTLEBOY-5/8-24
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 9Mm / 7.62X39 / 6.8Mm - 1/2 - 36 Tpi, Black LITTLEBOY-9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi, Black LITTLEBOY-5/8-24
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Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi, Black LITTLEBOY-5/8-24
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black LITTLEBOY-556
2 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
3 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 9Mm / 7.62X39 / 6.8Mm - 1/2 - 36 Tpi, Black LITTLEBOY-9mm
4 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 9Mm / 7.62X39 / 6.8Mm - 1/2 - 36 Tpi, Black LITTLEBOY-9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
5 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
6 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
7 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
8 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
9 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm
10 of 10 images
Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm

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Questions & Answers
Does it kind of slightly go over the barrel, or are some of the pictures for these online for shorter barrels with longer hand guard rails? Manufacturer Answer

Our Phase 5 littleBOY and FATman Hex Brakes will overlay the barrel by 1.15", giving it the "tucked" look without having a longer handguard vs barrel length.

by Phase 5 WSI, Manufacturer, June 25, 2025
Which model, the 1/2X28 or the 1/2X36 will work with an IWI Galil 7.62X39? Thanks. Manufacturer Answer

Double check the thread pitch for your specific barrel. The specs for the Galil 7.62x39 show 1:9.45" RH threading, which will not work with either option.

by Phase 5 WSI, Manufacturer, December 11, 2024
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Looks beautiful and functions great by Bdf, 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 wash...
Read More...
2/2 found this helpful
Helpful Positive Review
Hex Brakes by Mace Carter, Verified Owner, October 31, 2021
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 sm...
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4/4 found this helpful
Helpful Positive Review
Littleboy Hexbrake by dmon2793, Verified Owner, 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 defi...
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2/2 found this helpful
Helpful Positive Review
Phase 5 little boy hex brake by Gus, 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
1/1 found this helpful
Helpful Positive Review
Phase 5 Brakes by Troskins, 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!
2/2 found this helpful
Helpful Positive Review
Phase 5 never fails by Mmbow702, 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 ...
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2/2 found this helpful
Read All 11 Reviews
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4 Models Available
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Product Info for Phase 5 Weapon Systems Inc Littleboy Hex Brakes

Introducing the littleBOY Hex Brake; a younger, compact version of the original FATman Hex Brake, which was also created to solve issues faced by many competition shooters and precision rifle builders. Including 1 large (FAT) ventilated baffle section and chamber to create the compensation needed to reduce the overall recoil felt by the shooter. The design of the littleBOY Hex Brake allows the 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 littleBOY Hex Brake the perfect styling that custom gun builders are looking for.image

WARNING: California`s Proposition 65

Specifications for Phase 5 Weapon Systems Inc Littleboy Hex Brakes:

Manufacturer: Phase 5 Weapon Systems Inc
Color: Black
Finish: Parkerized
Length: 2.5 in
Condition: New

Features of Phase 5 Weapon Systems Inc Littleboy Hex Brakes

  • Mil-Spec Black Parkerized finish - Compatibility: 7.62x51 / .308 / 300BLK - Length: 2.5 - Width: 1.26 - Weight: 5.0oz - Threading: 5/8 x 24 TPI (Threads per Inch) - Includes (1) crush washer
  • APPROX. 0.85 FROM BARREL CROWN WITH CRUSH WASHER INSTALLED

Package Contents:

  • Phase 5 Weapon Systems Inc Littleboy Hex Brakes
  • Crush washer

Phase 5 Weapon Systems Inc Littleboy Hex Brakes Orderable Models

List of Orderable Models

  • Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi, Black, LITTLEBOY-5/8-24 , MPN: LITTLEBOY-5/8-24 , UPC: 813318021526 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-5-8-24
  • Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556 , MPN: LITTLEBOY-556 , UPC: 813318021519 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-556
  • Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm , MPN: littleBOY-1/2x28 9mm , UPC: 813318024497 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-1-2X28-9MM
  • Phase 5 Weapon Systems Inc Littleboy Hex Brake - 9Mm / 7.62X39 / 6.8Mm - 1/2 - 36 Tpi, Black, LITTLEBOY-9mm , MPN: LITTLEBOY-9mm , UPC: 813318021533 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-9MM

Phase 5 Weapon Systems Inc Littleboy Hex Brakes Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556 , MPN: littleBOY-556-EDEMO , Code: 1U8-BMB-LTLBHB-LITTLEBOY-556-EDEMO-US-U
  • USED Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi, Black, LITTLEBOY-5/8-24, EDEMO1, Condition Fair, Other , MPN: littleBOY-5/8-24-EDEMO1 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-5-8-24-EDEMO-OT-D
  • USED Phase 5 Weapon Systems Inc Littleboy Hex Brake, 9mm/7.62x39/6.8mm - 1/2-28 TPI, Black, littleBOY-1/2x28 9mm, EDEMO1, Used, Condition Fair, Scratches , MPN: littleBOY-1/2x28 9mm-EDEMO1 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-1-2X28-9MM-EDEMO-SC-D
  • USED Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556, EDEMO3, Condition Fair, Other , MPN: littleBOY-556-EDEMO3 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-556-EDEMO-OT-D
  • USED Phase 5 Weapon Systems Inc Littleboy Hex Brake - 5.56/.223 - 1/2 X 28 Tpi, Black, LITTLEBOY-556, EDEMO1, Used, Condition Fair, Condition Fair, Used , MPN: littleBOY-556-EDEMO1 , Code: 1U8-BMB-LTLBHB-LITTLEBOY-556-EDEMO-US-D
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