My Single Six 22 has been cut back to 3&3/4 in. And turned down to remove the Ruger Bible from the side of the barrel and the ejector housing shortened to fit. Makes a great packing pistol, and hits POA with most brands of 22LR. It's got the drift rear sight and a post frt sight. Also have both cylinders for it, but don't shoot it much with the 22Mag, cost too much. The base pin was shortened to alow the ejector rod to kick out the empties ok.
Makes a decent little gun, but I like my fixed sighted Single Six in 32H&R better. Hits a little harder, and I can load BP rounds for it.
I'm a sucker for a short barrel on a handgun, and love to shoot BP loads in everything I own.