Yankee Hill Machine YHM-2189 HUB Direct Thread Mount .578-28 Black Oxide

The Yankee Hill Machine YHM-2189 HUB Direct Thread Mount converts any HUB-compatible suppressor into a direct-thread configuration without tools or permanent modification. Simply unthread the existing HUB mount and thread this adapter into the rear of the suppressor to attach directly to a barrel threaded .578-28.

Machined from 17-4 PH heat-treated stainless steel with a rugged black oxide finish, the YHM-2189-28B is built for hard use. The mount accepts the industry-standard 1.375"-24 HUB suppressor interface and offers a generous .45 caliber through-bore, making it compatible with a wide range of pistol and rifle calibers on .578-28 threaded barrels.

This direct-thread adapter adds only about 1.7 oz of weight and measures roughly .3" long with a 1.5625" outer diameter, keeping your suppressor package compact and well balanced. This is the .578-28 thread variant of the YHM-2189, the spec commonly used on .45 ACP and other large-bore pistol barrels.