Sig Sauer Hexium, Suppressor, 5.56MM, Gray, Titanium Construction, HUB Compatible, Direct Thread Mount HEXIUM556 The SIG SAUER HEXIUM line of suppressors brings low back pressure and quiet, clean tones to your favorite firearm platform. Versatile, durable, and supported by the best warranty in the industry, SIG SAUER's HEXIUM line was engineered for demanding shooters with high expectations for suppressor performance. Utilizing SIG SAUER's advanced additive manufacturing techniques, state-of-the art computer analysis and industry leading testing equipment, the HEXIUM line of suppressors brings true performance and sound quality to shooters everywhere. For easy compatibility across platforms, the HEXIUM is furnished with a Hub Taper Direct Thread Mount, providing a quick and easy mounting solution. At the front end of the suppressor, a new modular end cap design was added for an accessory mounting system. Inside the 3D printed core, Sig's unique internal geometries deliver low back pressure and quiet tones across firearms of all types. On the outside, the external hexagonal pattern with black Cerakote strikes the perfect chord of form and function. With multi-caliber versatility, modular accessory options, and performance you can trust, SIG SAUER's HEXIUM suppressors deliver a refined edge to every shot.