Huma Air FX Barrel Attachment

This barrel attachment allows you to exchange the caliber of your FX rifle when you already have a matching transfer port and probe for the specific caliber.

[Need the whole kit? Find it Here – Impact Caliber Exchange Set .22 , Impact Caliber Exchange Set .25, Impact Caliber Exchange Set .30]

FX uses a medium strength threadlocker to fixate the transferport to the barrel to prevent the barrel coming loose. We strongly advice you to use a threadlocking adhesive like Loctite® 2400.