Huma-Air Regulator for Daystate Huntsman, Hatsan Flash, Flashpup, Hatsan models serial > 01/18 BT65,
For the Daystate Huntsman air rifle in FAC version, we have an Huma regulator available that can be placed into the rifle without modifications to your pressure tube.
The Daystate Huntsman regulator made by Huma is vented to the atmosphere, so no drilling in the tube and also no creeping up in power during time.