HUXWRX Flow 556K Suppressor & Flash Hider Kit


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The low-backpressure FBI contract-winning suppressor

This suppressor kit comes with one 5.56 Flash Hider QD threaded in 1/2×28 RH for use on most 5.56 rifles

(1 customer review)

After purchasing, please have your local store email their FFL and SOT to along with your name and order number

Product price: $1,125.00
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HUXWRX Flow 556K Suppressor & Flash Hider Kit

HUXWRX, formerly known as OSS Suppressors, released their first consumer 3D printed 5.56 suppressor called the Flow 556K.

An innovation upon the classic OSS Suppressors’ Flow-Through technology: the Flow 556K mitigates gas in your face and reduces back pressure. Made of 17-4 Stainless, the HUXWRX Flow 556K weights just 11.8 oz and measures a scant 5.5 inches, making it easily maneuverable on your host. This suppressor was designed to withstand the rigors of US Government testing. The Flow 556K is full-auto rated for short-barreled weapons.

The Flow 556K has a repeatable, and minimal point of impact shift. With its Torque Lock System, this suppressor tightens with every round fired. The Torque Lock System aligns using a taper and the Flow-Through™ technology helps seal the can against the QD mounting surface: meaning no carbon will get into the threads. The HUXWRX Flow 556K FH (Flash Hider) kit includes a flash hider muzzle device, so you’ll be ready to hit the range right out of the box.

The Flow 556K is also versatile: optimized as a 5.56 suppressor it can also shine on other firearms and cartridges outside of 5.56/.223. The Flow 556K is rated for 5.7×28, 17HMR, and other .22 and smaller centerfire rounds. Operate your HUXWRX suppressor confidently, knowing they will repair/replace, at no charge, suppressors made by HUXWRX Safety Co. and OSS Suppressors deemed to have manufacturer defects.

This is a regulated item and requires shipment to a FFL/SOT holder. After you have placed your order, please have your order number and a copy of your preferred store’s FFL/SOT emailed to to avoid delays. After I have received their FFL/SOT, I will file a Form 3. Upon approval, I will ship your order as soon as possible!

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1 review for HUXWRX Flow 556K Suppressor & Flash Hider Kit

  1. Tim Evancich (verified owner)

    Alas, the Flow 5.56 I bought will be in jail with my local FFL/SOT for a bit, so I’ll just review the outstanding shop I bought it from. Sol and Rooftop Defense have been extraordinary. Best price online for the Flow at the time of purchase, fast, clear and professional communications at hours I had no right to expect responses, great patience with a couple noob questions, fast processing, perfect notifications for every step of the processing and shipping processes until received by my local FFL. This is my first NFA purchase and I was nervous about it, but this was one of the most pleasant purchasing experiences I’ve had, period. Thanks Sol! I will be back for more and will be recommending you and Rooftop Defense to others.

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