Dead Air Wolverine Thread Insert .35 Cal. 14x1LH - Century USA Made GunsDead Air Wolverine Thread Insert . 35 Cal. 14x1LH Century USA Made Guns Thread insert designed for . 35 caliber with a 14x1LH thread pitch; Compatible with Century USA made AK rifles; Works with Wolverine Collars (M14 Collar required); Optimized for use with Dead Air Wolverine suppressors; Provides secure fit and precision alignment; Expands the versatility of the Wolverine suppressor for specific AK models Item Category Code: 7600 Product Group Code: