HKS MK3A A Series Black 6rd 38 Special/357 Mag Metal Ruger Security-Six Colt King Cobra Colt Peacekeeper
http://www.tandktactical.com/shop/088652001118-hks-mk3a-a-series-black-6rd-38-special-357-mag-metal-ruger-security-six-colt-king-cobra-colt-peacekeeper-12113
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HKS 38 Special/357 Mag, 6rd speedloader for Colt King Cobra, Peacekeeper; Ruger Security. A series works best with NO cartridge jiggle.
