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.