The Diamondback Firearms Sidekick .22 LR/.22 WMR Revolver boasts single/double action and has a 9-round capacity. It's built with a zinc alloy frame, blackwood laminate grip and blade front and integral rear sights. Diamondback Firearms Sidekick .22 LR/.22 WMR Revolver - Handgun Revolvr Rimfire at Academy Sports