.22 LR/.22 WMR. 5.5" barrel length. SN: 66-11101. Brushed stainless steel finish overall mounting smooth walnut Ruger logo grips and adjustable target rear notch and matted front ramp sights. Single action six-shot loading gate revolver featuring a spring loaded ejector to the right barrel. Left frame struck with a two line marking reading RUGER .22 CAL./NEW MODEL SINGLE-SIX with left barrel displaying the two-line instruction warning and address mark. Comes with a standard fluted .22 LR cylinder, and with a round .22 WIN. MAGNUM CAL. marked cylinder in its cardboard box and red felt bag.