NEW Design for 2021, no atmosphere hole needs to be drilled in the reservoir. The regulator gets atmosphere pressure from the Bulldog's receiver end cap.
 
Please Note: Bulldog Regulators are not Externally Adjustable. We can set the pressure to your specifications before installation.
 
A VERY BIG SHOUT OUT!!!! To Huub at Huma Air for making us this Custom regulator made specifically for us here at Pitbull Airguns.
 
The regulator is adjustable ( At Our Shop) from 90 to about 175bar and does an excellent job at keeping the extreme spread very low. My personal Pitbull gets an average of 8 FPS spread over 2 magazines!

Please note that we do not sell these as just a regulator, they can be purchased as a kit only and even then we recommend that they only be installed by a professional airgun tuner. 

We also recommend that these be installed with our longer Extended or Shroud-length reservoirs.
 
Kit Includes:

1x Custom HUMA Regulator
1x Aluminum Plenum Spacer
Receiver End cap Adaptor
End Cap/Foster Fitting
2x O- Rings