The HX-QD 556 from OSS Suppressors is a highly durable suppressor designed for 5.56 rifles, updated with a newly designed flash cap. Built with OSS’s patented Flow-Through® technology, it offers impressive sound suppression and zero flash performance, making it an ideal choice for various 5.56 caliber firearms. It is full-auto rated, passes the rigorous USSOCOM Reliability Stress Test, and has no minimum barrel restrictions.
Key Features:
- Flow-Through® Technology: Redirects expanding gases forward, reducing heat and pressure inside the suppressor, resulting in a cooler and more durable unit.
- Material Composition: Made with 17-4 stainless steel deflectors and internal Grade 5 Titanium coils, with a fully-welded outer body of 17-4 heat-treated stainless steel coated with C-series high-temperature black Cerakote®.
- Sound Suppression: Delivers hearing-safe sound levels in the mid-130s dB, measured at the shooter’s ear to comply with current military specifications.
- Compatibility: Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.
- No Minimum Barrel Restrictions: Suitable for use on any 5.56 caliber rifle, regardless of barrel length.
- Full-Auto Rated: Capable of handling the demands of full-auto fire.
Sound Pressure Levels:
- 20” AR15 DI with commercial grade 55 gr ammo: 130 – 134 dB
- 16” AR15 DI with commercial grade 55 gr ammo: 133 – 137 dB
- 10.5” AR15 DI with commercial grade 55 gr ammo: 138 – 142 dB
Materials & Finish:
- Internal Components: 17-4 stainless steel deflectors and Grade 5 Titanium coils.
- Outer Body: Fully-welded 17-4 heat-treated stainless steel.
- Finish: C-series high-temperature black Cerakote®.
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