Dead Air Wolverine Thread Insert .35 cal. 5/8-24Dead Air Wolverine Thread Insert . 35 cal. 5 8 24 Thread insert designed for . 35 caliber with a 5 8 24 thread pitch; Compatible with most . 308 7. 62mm . 300 caliber rifles; Works with Wolverine Collars (M14 Collar required); Optimized for use with Dead Air Wolverine suppressors; Provides precision alignment and secure fit; Expands the compatibility of the Wolverine suppressor across multiple firearm platforms Item Category Code: 7600 Product Group