HKS 586-A  Revolver Speedloader for S&W 586, 686, 581, 681/Ruger GP100
"A" Series Speedloader loads cartridges into revolver instantly. The principle is simple, strong metal points hold cartridges securely in the loader until you release them into the revolver with a turn of the speed loader knob. Fits S&W; 586, 686-6 Shot, 581, 681/Ruger GP100