Faxon Firearms Plan-B HUB Adapter Features The Faxon Firearms Plan-B HUB Adapter is machined from Grade-5 titanium also known as Ti-6Al-4V a material chosen for its strength to weight ratio and its ability to withstand the heat and stress generated at the muzzle during firing. Precision threads cut to 1.375-24 UNS-2A on the Plan B side ensure a repeatable properly indexed connection to any MuzzLok Plan B or similar Plan B pattern muzzle device. The opposite end carries 29/32-24 UNEF-2B threads the standard hub interface used by Faxon s HARMONIX and CORESYNC suppressor systems letting owners bridge between the two mounting standards without replacing their existing muzzle device. A natural titanium finish that has been passivated protects the adapter from corrosion while keeping its lightweight profile intact. Because the adapter is ultralight by design it adds minimal weight to the muzzle end of a rifle an important consideration for shooters who are sensitive to how added mass at the muzzle affects handling and balance. This interface gives owners of Plan B equipped rifles a straightforward path to hub-mount suppressors without needing to swap out an already-installed muzzle device. Designed and manufactured in the USA by Faxon Firearms the adapter reflects the company s broader reputation for precision-machined barrels and muzzle devices built to tight tolerances. For shooters looking to bridge Plan B muzzle devices with hub-mount suppressor technology this titanium adapter is a lightweight well-engineered solution for sale at GrabAGun. Faxon Firearms Plan-B HUB Adapter Specifications Manufacturer: Faxon Firearms Model: Plan-B HUB Adapter Color: Silver Material: Titanium Size: Ultralight Thread Pattern: 1.375x24 Compatible Hosts: Faxon HARMONIX CORESYNC Available At: GrabAGun