B&T Firearms Sd-145490 Hub Adapter 5.56 Black Titanium/S/S

The B&T Firearms Sd-145490 Hub Adapter is a 5.56 suppressor quick-detach interface built for shooters who want modular, tool-free mounting on their rifle suppressors. This titanium and stainless steel hub adapter uses the proven 1.375x24TPI HUB standard, making it compatible with B&T Rotex and SRBS suppressors as well as suppressors from other manufacturers that share the same thread specification. If you're running a 5.56 rifle with a Rotex flash hider, SOCOM muzzle device, or hybrid muzzle brake, this adapter lets you swap suppressors and muzzle devices without breaking out a toolbox.

Built from titanium and stainless steel, the Sd-145490 is engineered to handle the heat and impulse of centerfire rifle fire while staying light enough not to burden your setup. The one-hand mounting system means you can attach or detach your suppressor quickly in the field or at the range. For users who want a more permanent installation, the hub can be locked down with Rocksett or another thread-locking compound—a straightforward process that takes just a spanner wrench.

This is the same hub interface that ships standard on B&T Rotex and SRBS rifle suppressors, so if you already own one of those cans, you're already familiar with how it works. The cross-compatibility with SOCOM muzzle devices and flash hiders—as well as support for any 1.375x24TPI HUB-standard suppressor on the market—gives you flexibility to build or adapt your setup without being locked into a single brand ecosystem.

Key Features

• Fully HUB-compatible: works with all 1.375x24TPI HUB-standard suppressors
• 5.56x45mm rated for centerfire rifle use
• One-hand quick-detach mounting—no tools required to attach or remove
• Titanium and stainless steel construction for durability and thermal stability
• Compatible with B&T Rotex flash hiders, SOCOM muzzle devices, and hybrid brakes
• Optional semi-permanent installation with Rocksett or thread-locking compound

Specifications

Frequently Asked Questions

What suppressors and muzzle devices is this hub adapter compatible with?

The Sd-145490 works with all 1.375x24TPI HUB-standard suppressors on the market, plus all B&T Rotex flash hiders, SOCOM muzzle devices, muzzle brakes, and hybrid devices that use the same thread pattern. If your suppressor or muzzle device has a 1.375x24TPI HUB interface, this adapter will fit.

Can I use this on a rifle I already own?

Yes—as long as your rifle's barrel is threaded to accept the muzzle device that threads into this hub. The adapter itself threads into your suppressor or compatible muzzle device, then attaches to your rifle's flash hider or brake. You need a 1.375x24TPI HUB-compatible muzzle device on your rifle or in your setup for this hub to work.

Do I need tools to mount and remove this hub?

No. The one-hand mounting system allows you to attach and detach the hub without tools. For tightening during initial installation, you may use a spanner wrench, though hand-tightening is possible. If you want a semi-permanent installation, you can apply Rocksett or another thread-locking compound and use a spanner wrench to snug it.

Does this hub come with my B&T suppressor?

The Rotex-SF HUB ships standard with B&T Rotex and SRBS rifle suppressors, so you may already have one. This product is a replacement or additional hub if you need a spare or want to run multiple suppressors on the same quick-detach interface.