Phase 5 Weapon Systems — FATman Hex Brake (FATMAN556) — 5.56/.223 — 1/2"-28 TPI — 3.00" OAL — Black Parkerized Steel — UPC 813318021502

Meta (SEO) short description: Reduce felt recoil and keep your AR-platform shooting flat with the Phase 5 FATman Hex Brake (FATMAN556). A 3.00" black parkerized steel hex-style compensator for .223 Rem / 5.56×45 NATO with 1/2"-28 tpi threading, designed for competition, precision and custom builds. UPC 813318021502. Phase5 WSI+1

Product Overview

The Phase 5 FATman Hex Brake (FATMAN556) is a purpose-built hex-profile muzzle device engineered to cut perceived recoil and maintain a flat, repeatable shot cadence on AR-platform rifles chambered in .223 Rem / 5.56×45 NATO. Its distinctive Phase 5 Hex styling hides two large ventilated baffle sections and compensation chambers that work together to reduce rearward impulse and control muzzle rise — delivering faster follow-up shots and better target recovery for competition shooters and precision rifle builders. Phase5 WSI+1

Key Features & Benefits

• Caliber / Compatibility: Designed for 5.56×45mm NATO / .223 Rem platforms — installs on barrels with standard 1/2"-28 tpi threading. Valhalla Tactical Supply+1

• Exact threading & fit: 1/2"-28 threads per inch (industry standard for .223/5.56 muzzle devices). Use common crush washers or shims for timing. Valhalla Tactical Supply

• Length & coverage: 3.00" overall length (3" OAL) with a first chamber designed to sit close to the barrel crown, preserving barrel harmonics and accuracy. Valhalla Tactical Supply+1

• Porting & compensation: Two large “FAT” ventilated baffle sections plus dual top ports machined at a forward angle (~20°) to direct gas in a way that reduces muzzle rise and promotes flat, consecutive shot placement. Phase5 WSI+1

• Material & finish: Heavy-duty steel construction with MIL-SPEC black parkerized finish for durability, corrosion resistance, and a non-reflective appearance. Lever Arms+1

• Weight & footprint: Substantial mass and a 1.26" exterior width (approx.) give the FATman a stable feel and a distinctive visual presence on custom builds while keeping the first chamber close to the crown for accuracy retention. Valhalla Tactical Supply+1

• Includes: Typically ships with a crush washer; check retailer listing for included hardware and packaging details. Valhalla Tactical Supply

Performance & Real-World Use

The FATman Hex Brake’s large baffle volumes and forward-angled top ports are tuned to limit muzzle flip and reduce rearward impulse rather than maximize flash suppression. In practice this translates to quicker sight-to-target recovery, more consistent strings of fire, and greater controllability in competition or rapid-fire scenarios. Phase 5 intentionally designed the first chamber to sit close to the barrel crown to preserve accuracy while delivering meaningful recoil mitigation. Phase5 WSI+1

Installation & Fitment Notes

• Thread match is critical: The FATMAN556 uses 1/2"-28 tpi threads — confirm your barrel thread and orientation before install. Use proper torque and timing methods (crush washer or shims) to align the ports if you require a specific top-port orientation. Valhalla Tactical Supply

• Barrel length & legal considerations: Installing a 3.00" muzzle device may affect overall barrel length and, in some cases (e.g., pinning to reach certain overall lengths), interact with local/NFA rules. Do not alter or permanently modify barrels or devices to circumvent length or regulatory requirements. Consult local laws or a qualified gunsmith for compliance questions. Dvor.com

Materials, Finish & Durability

Manufactured from parkerized steel and finished with a MIL-SPEC black parkerize, the FATman Hex Brake is built to withstand regular range use and resist corrosion and finish wear under normal operating conditions. Its mass and robust construction also help dampen muzzle impulse compared with lightweight flash hiders. Buds Gun Shop+1

Who Should Buy the FATman Hex Brake

• Competition shooters and practical rifle competitors seeking faster follow-up shots and reduced muzzle rise. Phase5 WSI

• Precision builders and custom rifle enthusiasts who want a distinctive Hex aesthetic without sacrificing barrel accuracy. Valhalla Tactical Supply

• Any AR-platform owner in .223/5.56 looking to replace a basic birdcage or flash hider with a more effective compensator. Palmetto State Armory

Care & Maintenance

• Periodically inspect threaded interfaces, fasteners and the crush washer for secure fitment. Clean carbon and powder deposits from baffles and ports with standard firearms solvents and brushes — avoid aggressive media that could damage parkerize. Re-torque per manufacturer guidance after initial break-in and check fitment regularly. Buds Gun Shop

Ordering & Identification

• Model / SKU: FATMAN556 (Phase 5 FATman Hex Brake — 5.56/.223). Battlehawk Armory

• UPC: 813318021502 — use this UPC to verify listings and ensure you order the correct 1/2"-28 variant for .223/5.56 platforms. Battlehawk Armory

SEO-Optimized Closing Paragraph

Give your AR-15 build a meaningful upgrade in recoil control and follow-up speed with the Phase 5 Weapon Systems FATman Hex Brake (FATMAN556) — a 3.00" black parkerized steel compensator engineered for .223 Rem / 5.56×45 NATO barrels with 1/2"-28 tpi threads. With two large ventilated baffle chambers, forward-angled top ports, and a Hex profile that keeps the first chamber close to the crown, the FATman is designed to reduce muzzle rise while preserving accuracy — making it a great choice for competition, precision builds, and tactical rigs. Verify thread pitch and legal requirements before installation and use UPC 813318021502 when confirming your purchase. Phase5 WSI+2Valhalla Tactical Supply+2

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