Prior to 1973, the Single-Six was produced without the transfer bar mechanism, making it less safe to carry with all six chambers loaded, and with the hammer resting on a loaded chamber. The term 'New Model' simply means that this model includes Ruger's transfer bar mechanism for increased safety, allowing one to carry the revolver safely with all six chambers loaded. 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.
