This kit includes the High Flow V2 Dual Hole Transfer Port and the Slug and Pellet Probe. 

*FITS: FX Impact .35
 
The successor to the high flow dual hole transfer port; Huma Air has optimized and enlarged the air passage in this new version. The V-shaped transfer opening makes sure you will have the maximum and smoothest air passage area. The middle support bridge divides the transfer port into a dual hole port. This middle bridge makes sure the pellet or slug nose cannot fall into the enlarged transfer port hole, but will be guided smoothly by the middle bridge into the barrel. This dual hole transfer port has much larger air passage area compared to the OEM port for maximum performance.  The increasement varies by caliber. In combination with the Huma Air's High Flow Slug and Pellet Probe, you will be able to get even more power out of your FX Impact.

Please Read - Installation Notes:

FX uses a medium strength treadlocker to fixate the transferport to the barrel to prevent the barrel coming loose. We strongly advise you to use a treadlocking adhesive like Loctite® 2400, especially when working on these high power levels.

Any modification done to the airflow of your rifle will affect the entire setup and performance, you might need to re-adjust the settings of your rifle again to get the best possible performance.