Skip to main content

FLOW 556K

THE FIRST 3D-PRINTED FLOW-THROUGH SUPPRESSOR

FLOW 556K

THE FIRST 3D-PRINTED
FLOW-THROUGH™ SUPPRESSOR

FLOW 556K

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.

Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.

View White Paper →
Manual →

 

$1245
Includes Flash Hider QD 556 1/2x28

 

WEIGHT
LENGTH
DIAMETER

11.9-12.9 oz
5.5 in
1.6 in

TORQUE LOCK™

HUXWRX Torque Lock is a patented, tool-less locking system that ensures the suppressor will stay securely mounted onto the HUXWRX QD muzzle device.

HEARING SAFE

The HUXWRX Test Rifles shall not exceed 140 dB ten shot average sound pressure level at shooter’s ear during barrel life.

FULL-AUTO RATED

HUXWRX suppressors full-auto rating guarantees the suppressor passes the USSOCOM Reliability Stress Test.

CROSS-PLATFORM COMPATIBLE

HUXWRX QD suppressors can be used on a variety of calibers and rifle platforms.

Precision Certified

HUXWRX Suppressors are engineered and tested to meet the highest military accuracy specifications worldwide.

REPEATABLE & MINIMAL SHIFT

HUXWRX Suppressors are engineered so that the mounting interface is precise and consistent. The result is repeatable and minimal point of impact (POI) shift that meets military specifications worldwide.

NO WEAPONS MODS

Modifications to the bolt, gas tube, buffer or recoil springs, and other timing modifications are unnecessary.

RECOIL MANAGEMENT

Bolt velocity increases vary between -2% to 5% depending on weapon system, barrel length, and ammo types.

SERVICEABLE

Suppressor maintenance can be performed to increase the service life of the suppressor.

TORQUE LOCK™

HUXWRX Torque Lock is a patented, tool-less locking system that ensures the suppressor will stay securely mounted onto the OSS QD muzzle device.

HEARING SAFE

The HUXWRX Test Rifles shall not exceed 140 dB ten shot average sound pressure level at shooter’s ear during barrel life.

FULL-AUTO RATED

HUXWRX suppressors full-auto rating guarantees the suppressor passes the USSOCOM Reliability Stress Test.

CROSS-PLATFORM COMPATIBLE

HUXWRX QD suppressors can be used on a variety of calibers and rifle platforms.

PRECISION CERTIFIED

HUXWRX Suppressors are engineered and tested to meet the highest military accuracy specifications worldwide.

REPEATABLE & MINIMAL SHIFT

HUXWRX Suppressors are engineered so that the mounting interface is precise and consistent. The result is repeatable and minimal point of impact (POI) shift that meets military specifications worldwide.

NO WEAPONS MODS

Modifications to the bolt, gas tube, buffer or recoil springs, and other timing modifications are unnecessary.

RECOIL MANAGEMENT

Bolt velocity increases vary between -2% to 5% depending on weapon system, barrel length, and ammo types.

SERVICEABLE

Suppressor maintenance can be performed to increase the service life of the suppressor.

"The Flow 556k's sound suppression performance at the shooter’s ear on the standard MK18 is unprecedented. The silencer is constructed of 3D-printed 17-4 heat treated stainless steel and represents one of the most advanced systems evaluated by PEW Science, to date." - Jay (Pew Science)

FIGHT IN THE NIGHT

OPTIMIZED FOR LOW-LIGHT FLASH REDUCTION

MINIMAL VOLUME

Shorter and Lighter, the FLOW556k is optimized for compact weapon systems.

Materials & Finish: The FLOW 556k is fully 3D-printed in 17-4 stainless steel and is coated with C-series high temperature Cerakote®. Designed with the tried-and-true Flow-Through® technology, toxic gases are deflected forward through the suppressor and away from the shooter. The result is industry leading durability, size, and noise reduction.

*In an attempt to minimize waste, some suppressors and muzzle devices may arrive in OSS packaging while we transition to the new HUXWRX packaging. All suppressors purchased after 1/1/2022 will be engraved with HUXWRX.

*FLOW 556K SUPPRESSORS ARE NOW SHIPPING TO DEALERS

Materials & Finish: Unlike traditional suppressors that manage trapped gas, intense heat and pressure with blast baffles, OSS Flow-Through® technology redirects expanding gases forward allowing us to use 17-4 stainless steel deflectors and internal Grade 5 Titanium coils. The result is a remarkably cooler and extremely durable suppressor. The HX-QD 556k has a fully-welded outer body made of 17-4 heat treated stainless steel coated with C-series high temperature black Cerakote®.

Sound Pressure Levels: The HX-QD 556k was designed with minimal length in mind. The low volume and light weight make this suppressor ideal for shooters more concerned with size than maximum sound reduction. Sound pressure levels are measured at the shooters ear to comply with current military specifications:

  • 136 – 140 dB on 20” AR15 DI using commercial grade 55 gr ammo
  • 138 – 142 dB on 16” AR15 DI using commercial grade 55 gr ammo
  • 142 – 146 dB on 10.5” AR15 DI using commercial grade 55 gr ammo

*In an attempt to minimize waste, some suppressors and muzzle devices may arrive in OSS packaging while we transition to the new HUXWRX packaging. All suppressors purchased after 1/1/2022 will be engraved with HUXWRX.

ACCESSORIES