I've been curious about the 619. Smith introduced it with some fanfare, about 2 years ago, as a companion to the adjustable sight 620. Then, quickly, they discontinued it. Obviously, it didn't sell well at all. Maybe, because, to my knowledge, it came only with a 4" barrel. But, Smith continues to make and apparently find a market for other fixed sight 4" K frame guns, like the models 10 and 64, so I'm not sure what happened.