Yankee Hill HD 3-Lug 9mm 1-3/8x24 HUB Adapter - Black

The Yankee Hill YHM-2050 HD 3-Lug HUB Adapter is a quick-attach suppressor mounting assembly for firearms equipped with an HK-pattern tri-lug interface. Designed primarily for 9mm Luger hosts, it replaces a standard mount on suppressors that use 1-3/8x24 HUB threading.

The firearm side locks onto a compatible tri-lug interface for rapid suppressor attachment and removal. Suppressor compatibility is specifically documented for the YHM R9 and YHM Nitro N20. The adapter may also be used with 300 Blackout when firing subsonic ammunition only.

Its fully enclosed heavy-duty design is engineered for demanding use, including full-auto operation, and is intended to improve strength and service life compared with lighter-duty tri-lug mounts. Construction combines an aluminum body and components with a mounting interface machined from 17-4 stainless steel.

A matte black finish gives the assembly a clean, subdued appearance. The adapter weighs approximately 4.20 oz and is offered in New condition.