FAMILY: HX-QD Series
MODEL: HX-QD 5.56K
TYPE: NFA – Silencer
CALIBER/GAUGE: 5.56 Caliber
FINISH: Black Cerakote
The OSS HX-QD 556k is the optimal choice for the those looking for minimal length added to a 5.56 carbine. Focusing strongly on a minimizing size and weight, the HX-QD 556 is ideal for shooters who are more concerned with maneuverability over maximizing sound performance. As with all of the OSS Helix style silencers, the patented Flow-Through® technology of this silencer redirects the expanding gasses in a helical pattern allowing the gas to expand and cool as they move through the silencer body. This unique design also means that the expanding gas generate torque on the silencer and snugging it onto the mount. As the gas moves through the 17-4 stainless and Grade 5 titanium coils, the resulting effect on the silencer tube is a remarkably cooler and extremely durable suppressor.
Speaking of durability, the HX-QD’s are built with a full auto rating and easily pass the USSOCOM reliability stress test – said differently, these cans are built for abuse. The proven Flow-Through® tech is also focused on the need to not increase back pressure (or blowback) like a traditional baffle stack might. These silencers are tested to impact bolt cycle speed less than 5% over a baseline, therefore muzzle rise and recoil are more easily managed as well as not effecting weapon malfunctions.
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
Finish: C-Series Cerakote
Build Materials: 17-4 Stainless & Grade 5 Titanium
Maintenance Schedule: A detailed cleaning is recommended every 2,500 rounds. Detailed cleaning will help ensure product performance and service life are uncompromised
What’s In The Box
Flash Hider QD 556 1/2×28
Suppressors are not legal in the following states:
- New York
- New Jersey
- Rhode Island
This is a serialized item considered to be a firearm by BATFE. This item must be shipped to a Federal Firearm License (FFL) and Special Occupational Tax (SOT) holder. All BATFE, GCA & NFA rules apply! You will be prompted during checkout to pick an FFL to ship to in your area using our FFL Locate tool. YOU will be responsible for checking with your local FFL to ensure this weapon is legal in the state that you reside and that they will accept this weapon on your behalf and transfer it to you. Caverns Armory Manufacturing, LLC will NOT be responsible for any shipping or admin charges incurred by packages not being accepted by the FFL you choose during checkout.