Phase 5 FATman 1/2-28 Hex Brake, 5.56mm/.223 Rem - FATman-556

Phase 5 Weapon Systems Phase 5 FATman 1/2-28 Hex Brake, 5.56mm/.223 Rem - FATman-556 - Muzzle Device for AR-15 - view 1
Phase 5 Weapon Systems Phase 5 FATman 1/2-28 Hex Brake, 5.56mm/.223 Rem - FATman-556 - Muzzle Device for AR-15 - view 2
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Phase 5 Weapon Systems

Overview

The Phase 5 FATman 1/2-28 Hex Brake is a muzzle brake designed specifically for 5.56 NATO caliber firearms. It effectively reduces recoil and muzzle rise, allowing for quicker follow-up shots and improved control during rapid fire. This muzzle device is commonly found on carbine-length gas system builds, making it a popular choice for those looking to enhance the performance of their AR-15.

Specifications

MPNFATman-556
Caliber5.56 NATO
Thread Pitch1/2x28
TypeMuzzle Brake
Muzzle Device TypeMuzzle Brake

Available Merchants(6)

Prices checked

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Optics Planet logo
Optics Planet
Free shipping
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In Stock
$120.00
Classic Firearms logo
Classic Firearms
Shipping varies
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In Stock
$120.00
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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In Stock
$120.00
AT3 Tactical logo
AT3 Tactical
Shipping TBD
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In Stock
$120.00
Palmetto State Armory logo
Palmetto State Armory
Free shipping
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In Stock
$120.99
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
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Out of Stock
$120.00

Build history on GunPartPicker

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 5 of the 6 retailers we track have it in stock. Prices barely moved in October 2026, holding around $120, with no real sale all month. Buying today, the lowest price is $120 at Optics Planet, which matches the best price we saw in October.

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Builds Featuring This Part

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Builds in the community that include the Phase 5 FATman 1/2-28 Hex Brake, 5.56mm/.223 Rem - FATman-556

BuildPartsTotal
16" aero precision SBR build
16" aero precision SBR
26$1898.05

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