AR-15 – Muzzle Brake – FATman Hex Brake – 5.56 / .223 – 1/2x28

Phase 5

$119.99

More on the way!

AR-15 – Muzzle Brake – FATman Hex Brake – 5.56 / .223 – 1/2x28


PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.

The Phase 5 Weapon Systems FATman Hex Brake in 5.56 / .223 is a steel muzzle brake built for rifles using 1/2x28 threads. It uses two large ventilated baffle sections and forward-angled top ports to cut recoil impulse and help keep the muzzle flatter through repeat shots. This is the 5.56 / .223 version, not the larger .30 cal thread pattern model.


Fitment

  • Fits .223 Remington / 5.56 NATO barrels threaded 1/2x28
  • Best fit use case: AR-15 and similar .223 / 5.56 rifles with correct thread pitch

Does NOT fit

  • Does not fit 5/8x24 threaded .30 caliber barrels
  • Do not buy this for .308 / 7.62 rifles unless your barrel thread and caliber specifically support it

What it does

This brake redirects gas to reduce felt recoil and help control muzzle rise. In plain English: it helps the rifle stay flatter and more manageable when you are trying to run fast strings or keep the sight picture from bouncing like a jackrabbit on espresso.


Why it’s worth it

If you want a big-boy brake that actually looks like it means business, this one does. It is not the lightest or the smallest, but it is built for shooters who care more about recoil control than pretending blast does not exist.


Specs

  • Caliber compatibility: .223 Remington / 5.56 NATO
  • Thread pitch: 1/2x28
  • Material: Steel
  • Finish: Black parkerized / mil-spec black parkerized
  • Length: 3 inches
  • Weight: 6.1 oz
  • Design: Dual ventilated baffle sections with top ports
  • Made in USA

What’s included

  • 1 muzzle brake
  • 1 crush washer

Tools needed

Proper armorers wrench or suitable wrench for the flats, vise setup, and the good sense not to mangle your barrel while rushing.


Install notes

Install on the correct thread pitch only. Time the brake correctly, verify bore alignment, and confirm safe clearance before firing. If you are not comfortable installing muzzle devices, hand it to a gunsmith and save yourself the headache.


Verify before you buy

Verify your barrel is chambered for .223 / 5.56 and threaded 1/2x28.


⚠ Install & Compatibility Disclaimer

Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.

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