The Single-Six is currently produced as the New Model Single-Six.
The Single-Six was first released in June 1953. The Ruger Single-Six is a single-action rimfire revolver produced by Sturm, Ruger & Co. 32 H&R Magnumįixed or adjustable iron sights (the Hunter model has provisions for mounting a scope)
Ruger New Model Single-Six (stainless) on top and Ruger 'Old Model' Single-Six (blued) on bottom.