Sig Sauer Hexium 556

Sig Sauer Hexium 556 Features The Hexium 556 is part of Sig Sauer's next-generation suppressor technology leveraging additive manufacturing to create complex internal geometries for superior gas flow and acoustic performance. Its monolithic titanium core is printed as a single piece eliminating internal welds and weak points. This design not only reduces weight coming in at just 11 ounces but also increases durability under extreme heat and pressure commonly encountered during rapid-fire strings or full-auto use. At the heart of the system is Sig's HUB-compatible taper mount. This 1.375x24 thread pattern allows for modular mounting compatibility with a wide range of suppressor mounts and muzzle devices. Out of the box the suppressor is configured with a 1/2x28 direct thread adapter that provides a secure and precise barrel interface ensuring reliable alignment for accuracy-focused applications. The taper lock further enhances thermal and retention characteristics under heavy use. Externally the suppressor body is finished in a matte black corrosion-resistant coating and features clean functional lines. The front is designed to accept interchangeable end caps allowing users to fine-tune back pressure and sound performance. The Hexium 556 is purpose-built for tactical shooters law enforcement and high-volume range use offering a balance of suppression weight savings and ruggedness in a compact footprint. Sig Sauer Hexium 556 Specifications Manufacturer: Sig Sauer Family: Hexium Series Model: Hexium 556 Type: NFA - Silencer Item Group: Centerfire Rifle Silencers Caliber: .223 Remington / 5.56 NATO Core Material: 3D Printed Titanium Finish: Matte Black (heat-resistant coating) Mounting System: HUB Taper Direct Thread Mount Thread Pitch: 1/2x28 (factory supplied) Overall Length: 6.2 inches Weight: 11 ounces End Cap Compatibility: Modular End Cap Mounting System Internal Design: Flow-optimized for low back pressure Application: AR-15 platforms SBRs full-length carbines Compliance: NFA Item ATF Form 4 required