B&T XH556 5.56mm Suppressor, Titanium/Inconel

The B&T XH556 (B&T part no. SD-556RBS-Ti) is a 5.56mm/.223 Rem suppressor built from titanium and Inconel, specifically tuned for the increased pressures associated with 5.56/.223 firearms. B&T mounts the XH556 via a 1.375×24 thread pattern compatible with Rotex/SF hub adapters. The XH556 favors shooters who want a suppressor engineered around the specific pressure demands of 5.56 platforms rather than a general-purpose can.

Key Specifications

• Rated for .223 REM/5.56 NATO ammunition.
• Threaded 1.375×24 for Rotex/SF hub mounting.
• Built from titanium and Inconel, tuned for 5.56-specific pressures.

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 mounting system does it use? A 1.375×24 thread pattern compatible with Rotex/SF hub adapters.

Buy the B&T XH556 5.56mm 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 B&T‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.