Sig Sauer Hexium 556 Suppressor, HUB Taper Direct Thread, Black

The Sig Sauer Hexium 556 (Sig Sauer part no. HEXIUM556) is a 5.56mm/.223 Rem suppressor built with a 3D-printed titanium core and mounted via a HUB taper direct-thread system, finished in black. Sig Sauer threads the Hexium 556 in a 1/2×28 pattern and sizes it at 6.2 inches. The Hexium 556 favors 5.56 shooters who want Sig’s 3D-printed titanium construction with HUB taper mounting.

Key Specifications

• Rated for .223 REM/5.56 NATO ammunition.
• Threaded 1/2×28 for direct attachment.
• Measures 6.2 inches long.
• Built with a 3D-printed titanium core.
• Finished in black.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it's a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What is the core made from? A 3D-printed titanium core.

Buy the Sig Sauer Hexium 556 Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Sig Sauer‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.