There are 4 currently available, Ruger LCR-22, Charter Arms Pathfinder, Taurus 94 and Smith & Wesson 317. All are available with 2" barrels. I have all 4, with the exception, my S&W 317 has a 3" barrel. The Ruger LCR 22 is Double Action Only, and is only available that way. I would recommend you stay away from the Taurus. I have major issues with mine, and the overall quality just isnt very good. The other 3 are all excellent. The Pathfinder is a good value. Mine didnt shoot to point of aim, and has fixed sights. It went back to Charter for repair. They paid shipping both ways, had it a month, and now its perfect. My Ruger shoots to point of aim at 10 yards, and is a nice little revolver. The S&W is much more expensive than the Ruger, or Charter, but is all aluminum, and very high quality, but you pay for that. If you are looking for a reasonably priced option, then the Ruger or Charter. If money isnt an issue, then the S&W would be my choice.