The video opens with unsuppressed shots to highlight the difference once the HuxWrx Flow 5.56K suppressor is installed. The host explains that HuxWrx is the rebranded OSS, carrying forward and improving the same core technology from the earlier OSS suppressor line. The Flow 5.56K is described as a dedicated 5.56 silencer that can also be used with smaller centerfire cartridges such as .22 caliber, 5.7, and .17 HMR. It is intended primarily for 5.56 and smaller calibers. The host notes that this is a suppressor he has been waiting on for some time and that it has already received favorable attention from independent testers like Pew Science, as well as adoption by the FBI.
The Flow 5.56K is fully 3D printed from 17-4 stainless steel, allowing complex internal geometry in a single-piece construction. The suppressor weighs about 11.8 ounces and measures roughly 5.5 inches in length, which the host contrasts with older, heavier OSS models he has used. He emphasizes the flow-through design, which routes gases forward through internal channels rather than trapping them in traditional stacked baffles. The host compares it to a SureFire SOCOM RC2 he has shot on the same short-stroke piston platform, noting that the RC2 produced more noticeable back pressure and gas to the shooter. With the Flow 5.56K, he perceives virtually no additional gas coming back into the system or the shooter’s face, while acknowledging there must still be some increase in pressure.
HuxWrx claims minimal point of impact shift with the Flow 5.56K, and the host plans to verify this at distances out to 100 yards. He begins by shooting the FN SCAR 16 unsuppressed with a flash hider, confirming zero on targets at 50 and 100 yards. He then installs the Flow 5.56K on the muzzle device, initially only hand-tightening it, and fires additional rounds to observe any shift. The host remarks on the suppressor’s sound, describing it as quiet with a deeper, bass-like tone rather than a sharp, piercing crack. To his ears, it is comfortable without causing immediate ringing, though he notes his existing hearing damage. He attributes the sound profile to the intricate 3D-printed internal structure that manages and slows gases before they exit the front of the suppressor.
The host evaluates gas escape at three locations on the SCAR 16: the muzzle, the gas system at the piston, and the chamber. While firing multiple strings of shots, he observes only minimal smoke and gas at each point, even after roughly 40 to 50 rounds. He notes that the SCAR 16 is a short-stroke piston rifle that already mitigates gas to the face, but he finds the Flow 5.56K makes it one of the most comfortable suppressed rifles he has used. He reports essentially no gas in the shooter’s eyes, allowing him to shoot without tearing up. As a comparison, he mentions previous experiences with a SIG Rattler in 300 Blackout, where the smaller system produced more gas back to the shooter. With the Flow 5.56K on the SCAR 16, he describes the rifle as very flat shooting and particularly pleasant to run suppressed.
The host discusses maintenance considerations for the Flow 5.56K’s one-piece 3D-printed construction. Because the internals are not user-serviceable and cannot be disassembled, cleaning must be done as a sealed unit. He references general advice suggesting cleaning a suppressor about as often as the host cleans a rifle, acknowledging that in his case this will likely result in a very dirty can. Some recommendations he has heard suggest cleaning around every 2,000 rounds, and he mentions an interest in seeing how the suppressor performs after 5,000 rounds. For cleaning, he describes a method similar to what would be used on a SureFire suppressor: submerging the entire unit in a bucket of solvent, allowing it to soak, then drying it and using compressed air to blow out residue. He notes that the complex internal geometry, while beneficial for performance, may make thorough cleaning more challenging.
The Flow 5.56K uses a left-hand thread pattern on the muzzle interface, and the host points out the orientation of the gas exit channels. As gases flow through and out the front, they apply torque that tends to tighten the suppressor further on the threads, creating a self-tightening effect during firing. This design helps prevent the suppressor from loosening, a concern with some direct-thread cans. The suppressor mounts directly to a threaded muzzle device and is removed by turning it in the indicated direction, which is marked on the body along with model information and lock/unlock arrows. After several magazines, the host notes that the suppressor becomes very hot and difficult to remove by hand, even though it was initially only lightly tightened. He uses a heat-resistant glove to attempt removal, illustrating how effectively the flow-through gas and left-hand threads keep the suppressor firmly seated under use.
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