OSS HX-QD 556K
A short and extremely durable suppressor, the HX-QD 556k – updated with our newly designed flash cap – is built with patented and proven Flow-Through® technology, delivers sub-140 dB and zero flash performance, is full-auto rated, easily passes the USSOCOM Reliability Stress Test, and has no minimum barrel restrictions – it’s designed and built for extreme use.
Compatible with Muzzle Brake-QD 556 and Flash Hider-QD 556.
6 in stock
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Materials & Finish: Unlike traditional suppressors that manage trapped gas, intense heat and pressure with blast baffles, OSS’s 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®.
- 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