Charter's pitbull features an unique design which provides a dual coil spring assembly located in the extractor which allows for easy cartridge insertion and retention in every chamber of the revolvers cylinder.This patented system allows the shooter ease of ejecting spent cartridges for immediate reloading.Charter arms has taken the difficulty of rimless loading and ejection to the simplicity of the rimmed cartridge in the revolver industry.This model has a black nitride finish and a 2.5" barrel.Frame Description: Black Nitride Stainless SteelType: RevolverAction: SA/DACaliber: 45 ACPBarrel Length: 2.50"Capacity: 5rdHammer Style: ExposedGrips: Black RubberSights: Fixed FrontWeight: 22 ozFrame Size: Extra LargeCylinder Finish: Black NitrideBarrel Finish: Black NitrideOal: 7.38"Barrel Length Range: 2" to 2.99"Weight Range: 16 oz to 31.99 oz