This Ruger New Model Single-Six Convertible revolver comes with both, 22 LR & 22 WMRF interchangeable cylinders. SPECS: 9.5" Barrel, adjustable rear sight pinned to the channel, Patridge front sight, blued finish, Rosewood grips with black/ silver Ruger logo medallion inlays, grooved hammer, stainless trigger and 6-shot cylinder. CONDITION: This revolver is in same-as-new condition with no wear to speak of, has a sharp/ clean bore, appears to be in good working order and comes in the original grey hardcase with paperwork. HISTORY: The Ruger Single-Six is a six-shot, single-action rimfire revolver that was introduced in 1953, when westerns were popular in movies and television. Colt had discontinued the iconic Single Action Army prior to World War II, and few single-action revolvers were available to meet market demand for cowboy-style revolvers. The term "Super Single-Six" refers to those models which have fully adjustable target sights introduced in 1964. The early models (pre-1974) still operated the same way as the Colt SAA in that the hammer was half cocked to load and unload, and that the firearm was not safe to carry with all six chambers loaded due to the hammer resting upon the sixth chamber. A transfer bar was added to all models in 1974. FREE SHIPPING & NO PROCESSING FEES.