1.375x24 HUB Direct Thread Adapter

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The 1.375x24 HUB Direct Thread Adapter provides a direct thread interface for the Griffin Bushwhacker®, OMEGA™, NOMAD™, & other 1.375x24 threaded suppressors. Wrench flats make it equally simple to attach or remove from the suppressor tube body or your firearm's muzzle threads. No proprietary tools required. Available in 1/2x28 and 5/8x24. While it is convenient to have direct thread suppressor capability that can move from host to host without the need for additional muzzle devices, it is important to remember that each host firearm must be checked for baffle alignment via visual inspection before firing.

The 1/2x28 Insert can be used with cartridges up to 9mm and the 5/8x24 can be used up to .45 caliber.

  • 17-4 PH SS Billet Machined
  • Black Nitrided
  • 1.8 Ounce Weight
  • Wrench Flats for every contingency
  • Multi-Thread versatility for 1.375x24 threaded suppressors

Additional Details

.45 cal
Thread Pitch:
Type Of Part:
Thread Adapter

4 Reviews

  • 4

    Published by Mark Hayes on 1st Aug 2023

    It fit my ruger American ranch perfectly.

  • 5
    Hub direct thread

    Published by Birch Knoll Gun Shop; LLC on 6th Apr 2023

    Fine workmanship and very speedy delivery

  • 5
    Great USA made product!

    Published by Brian on 8th Dec 2021

    Workmanship is awesome. Griffin Armament product come from people who depend on these kind items to save lives! Very good craftsmanship!

  • 4
    Works Well

    Published by Ross on 13th Jul 2021

    This universal adapter works well on my Optimus Micro for 22LR. It adds about 1/2” to the overall set up vs the direct thread rear end-cap. I would prefer an Optimus Micro specific adapter that recesses the female portion of the interface deeper inside the main tube and utilizes the internal taper. Overall, a solid product with a simple, solid lock up.

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