HUXWRX Safety Company Flow 556 Ti, Suppressor, 6.8 Long, 556NATO, C-Series Cerakote Finish, Black, Grade 5 Titanium Construction 3059 Lightweight and long-lasting, the FLOW 556 Ti is the latest advancement in Flow-Through technology. Entirely 3D-printed with Grade 5 titanium, the FLOW 556 Ti is the quietest full-size 5.56 dedicated suppressor to come from HUXWRX Safety Co. without sacrificing quality, longevity, durability, or functionality.