The Phase 5 littleBOY Hex Brake (brand part number littleBOY-556) is a compact 5.3-ounce muzzle brake for 5.56 NATO AR-15 barrels, built as a scaled-down version of Phase 5’s original FATman Hex Brake. It carries a single large, ventilated baffle chamber that generates the compensation needed to cut felt recoil, engineered so the chamber wall sits as close to the barrel’s crown plane as possible without robbing the barrel of its accuracy. The iconic Phase 5 hex-shaped body gives it the custom-build look precision rifle and competition shooters look for.

Key Specifications

• Chambered for 5.56 NATO/.223 Remington AR-15 barrels.
• Weighs approximately 5.3 ounces, a compact version of the original FATman Hex Brake.
• Uses a single large, ventilated baffle chamber to generate recoil compensation.
• Positions the chamber wall close to the barrel’s crown plane to preserve the barrel’s accuracy.
• Features the distinctive Phase 5 hex-shaped body for a custom-build appearance.
• Finished in black.

Frequently Asked Questions

How is the littleBOY different from the original FATman Hex Brake? The littleBOY is a smaller, lighter 5.3-ounce version of the original FATman, built to solve the same recoil-compensation problems in a more compact package.

Does the brake affect barrel accuracy? No, the chamber wall is designed to sit as close to the barrel’s crown plane as possible specifically to maintain the barrel’s full accuracy.

What barrels does it fit? Any 5.56 NATO/.223 Remington AR-15 barrel with a compatible thread pattern.

Buy the Phase 5 littleBOY Hex Brake, 5.56 NATO, Black

Add real recoil compensation with the custom-build look of the Phase 5 littleBOY Hex Brake. Order it from our Lubbock, Texas gun shop for fast, insured shipping and finish your AR-15 muzzle device upgrade.