The Silent Steel USA HUB Direct-Thread Mount, 1.375×1/2-36 (brand part no. HUB_DT_1.375X1/2X36) is a mounting adapter that lets any HUB-compatible Silent Steel USA suppressor thread directly onto a barrel with 1/2×36 muzzle threading, without a separate quick-detach mount in between. Silent Steel USA machines the adapter to convert the suppressor’s 1.375-inch HUB interface down to a direct-thread connection, keeping the setup simple for shooters who prefer permanent or semi-permanent mounting over quick-detach hardware. Among our silencers and suppressed firearms, this adapter suits owners of a HUB-based Silent Steel USA suppressor who are building a dedicated 1/2×36-threaded host.

Key Specifications

• The suppressor-side interface is Silent Steel USA’s 1.375-inch HUB thread.
• The barrel-side thread is 1/2×36.
• The mount type is direct-thread, with no quick-detach mechanism.

Frequently Asked Questions

Is this an NFA-regulated item? No. A thread adapter is a mounting accessory, not a firearm or suppressor component covered by the National Firearms Act, so it ships and transfers with no ATF paperwork.

Do I still need a Silent Steel USA suppressor to use this? Yes, this adapter only converts the mounting thread; it does not include a suppressor.

Can I switch back to a quick-detach mount later? Yes, since this adapter threads onto the same 1.375-inch HUB interface, you can swap it for a quick-detach HUB mount at any time.

Buy the Silent Steel USA HUB Direct-Thread Mount

A simple, direct-thread path from a 1/2×36 barrel to any HUB-compatible Silent Steel USA suppressor, this adapter keeps your setup uncomplicated. Order it from our Lubbock, Texas gun shop for fast shipping.