The HX-QD 556 Ti suppressor – with patented and proven OSS Flow-Through and Torque Lock technology – is built with a combination of Grade 5/Grade 9 Titanium and 17-4 stainless steel. It delivers superior accuracy and repeatability, is full-auto rated, and compatible with 5.56 rifles with no minimum barrel restrictions. Utilizing our new Geo Flash Mitigation Technology that HX-QD 556 TI eliminates virtually all flash. And unlike other 556 titanium suppressors, the HX-QD 556 Ti has a stainless-steel core that delivers durability in excess of 40,000 rounds vs. full titanium suppressors that last a fraction of that.