Is there a reason why Ruger wants you to return the whole pistol to the factory to fit a 22 Mag cylinder? I've got a Single Six, but the seller had the wrong mag cylinder for it, so I wanted to buy one from the factory, but they want the pistol returned to them to "fit" it. I hate to let my little baby ( 9.5 Inch barrell, sweet shooting) go for a month or more. If there is a good reason for doing so, okay but otherwise ??