Hoppe's No. 9 Conversion Adapter Knob End

Hoppe's No. 9 Conversion Adapter knob-end products provide an easy-to-use solution for permitting interchangeability with non-standard firearm thread sizes. Designed for use across rifle and shotgun thread fittings and various caliber/gauge connections, the adapters facilitate gunsmithing, cleaning, and maintenance tasks. Variants in this family include knob-end and slotted-end options to match different thread fittings. Products are supplied on card and are intended to simplify adapting and connecting tools and accessories to non-standard threads.