The Ruger Single Six is a .22 LR single action revolver, heavily based off of the original Colt Single Action Army revolver. The Single Six is the most popular rimfire revolver on the market today and has been ever since its release in the 1950s. Available in a number of different finishes and barrel lengths, the Single Six is also available in ten shot and nine shot versiojns as well.
Beginning in 1973, the Single Six began to be released with a safety feature from Ruger in the form of a transfer bar on the mechanism. This made it safe to load all six shots into it, because before, the hammer of single action revolvers would rest over a loaded bullet and post a safety issue. Furthermore, the Single Six will not fire unless if the trigger has been pulled.