Dead Air Hub Direct Thread Mount M18x1 Fits Sierra 5, Black

HUB Fixed Mount Inserts - 1.375-24 HUB Direct-Thread Interface for Expanded Suppressor CompatibilityHUB fixed mount inserts provide a precision direct-thread interface that expands suppressor compatibility across a wide range of firearms. Machined to industry-standard 1.375-24 HUB dimensions, these inserts thread into compatible suppressor bodies to allow direct mounting to host muzzles without additional hub hardware. Available in multiple thread pitches, the inserts make it simple to move a si