Huma-Air Tuning Regulator for AirMaks Krait MKIHuma Air Tuning Regulator AirMaks Krait Series (MKI monoblock) For the AirMaks Krait series airrifles we have a tuning pressure regulator available to replace the factory regulator. It will solve all known issues of the factory model regulator and will give you the best posible accuracy and repeat cycle. It is an one on one swap with the original factory regulator, so no modifications to be done, just remove the factory reg and replace it with our