To all our Customers interested in the new rimless 9mm Pitbull: Please be aware that Charter Arms produced a “Pitbull” for 9mm Federal cartridges for a brief time in the late 80’s. The old model will have Stratford, CT on the barrel. The 9mm Federal was a rimmed cartridge and is no longer produced. This is not the same as the Pitbull 9mm rimless revolver produced currently. The new 9mm Pitbull model will chamber 9mm Luger rounds only. All new Pitbull revolvers will also have Shelton, CT on the barrel. The new model number is 79920.