HKS 586-A Speedloader 38/357 S&W 586/686/581/681 Ruger GP100
Stop loading your revolver one cartridge at a time. With one twist, the HKS® Speedloader instantly loads all six cartridges into nearly any revolver. The principle is simple: strong metal points hold cartridge secure in the loader until you release them into the revolver with a twist of the Speedloader knob.