Gemtech Direct Thread Hub Adapter, 1/2×28

The Gemtech Direct Thread Hub Adapter (brand part no. 13890) converts a Gemtech quick-detach suppressor hub to a 1/2×28 direct-thread mounting point, the standard thread pitch for most 5.56 and pistol-caliber hosts. It threads onto the hub and locks securely, giving a solid, repeatable index for the suppressor body without the added length of a QD mechanism. This is a factory-matched accessory within Gemtech’s hub-based mounting ecosystem, letting one can be reconfigured for different hosts as needed.

Key Specifications

• Converts a Gemtech quick-detach hub to a direct-thread mounting interface.
• Cut to a 1/2×28 thread pitch, the standard for most 5.56 and pistol-caliber hosts.
• Compact package footprint of roughly 1.6 x 3.8 inches for storage.
• Weighs approximately 2.4 ounces, adding negligible weight to the build.

Frequently Asked Questions

What does this adapter do? It converts a Gemtech quick-detach suppressor hub to a 1/2×28 direct-thread mounting point.

How is this different from the 5/8×24 version? It is cut to a 1/2×28 thread pitch instead, matching the more common thread standard on 5.56 and pistol-caliber hosts.

Buy the Gemtech Direct Thread Hub Adapter 1/2×28

Add direct-thread flexibility to your Gemtech suppressor’s mounting hub. Order it from Gemtech’s silencers and suppressed firearms lineup, and our Lubbock, Texas gun shop will ship it out fast.