The 9mm Rimless Revolver PITBULL now features a 5-shot cylinder in line with the rest of the Pitbull family. The 9mm uses same unique rimless cartridge extractor assembly system as the Charter Arms .40 cal Rimless Revolver. A dual coil spring assembly located in the extractor allows insertion and retention of a 9mm cartridge in each chamber of the revolver’s cylinder. After firing, the shooter can easily eject the spent cartridges for immediate reloading.