HUXWRX Flow 556K Kit w/ Flash Hider

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FBI Contract Awarded Low Back Pressure Suppressor

US DOJ FBI awards HUXWRX Safety Co. (formerly OSS Suppressors) with the FBI Hostage Rescue Team (HRT) contract for production and delivery of their new 3D-printed FLOW 556k suppressor. The Indefinite Deliverable/Indefinite Quantity Contract is worth $4.9 million to be paid out over a 5-year (1-base year, plus 4 option years) term and is the largest law enforcement suppressor contract to date.


An innovative multi-caliber suppressor with patented and proven Flow-Through® and Torque Lock® technology. It is designed to reduce signature without negatively impacting cycling or service life. The FLOW 556k is DMLS printed in 17-4 Stainless. It delivers superior toxic fume exposure mitigation, flash reduction, sound reduction, recoil reduction, accuracy, and repeatability by its unique Flow-Through® helical coil and core deflector design. It is full-auto rated and compatible on 5.56, 17 HMR, and 5.7 platforms. The integrated flash cap geometry effectively mitigates flash as part of its overall signature reduction funtionality.

Comes with: Flash Hider-QD 556.

WEIGHT: 11.8–12.9 oz / 335–366 g

OVERALL LENGTH: 5.5 in / 14.0 cm

DIAMETER: 1.6 in / 4.0 cm

SOUND PRESSURE LEVEL: avg. 143 dB at the shooter’s ear avg. 18 dB reduction

BOLT VELOCITY: 1% from baseline with Flash Hider-QD (measured with 10.3” Daniel Defense w/XM193)

LENGTH ADDED TO BARREL: 4.9 in / 12.4 cm

MATERIAL: 17-4 Stainless Steel

SERVICE LIFE: 10,000 rounds threshold with objective 20,000 rounds. Detailed cleaning will help ensure product performance and service life are not compromised

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HUXWRX Flow 556K Kit w/ Flash Hider

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