I too, have the 21-4 and the 22-4. Both are excellent guns. I have owned three of each of these and sold/traded them away but I always buy one back. They have excellent triggers and nice finishes. Some of the earlier 22s came with a too tall front sight and the one I have now is one of them but I slowly filed until I got the elevation I wanted. S&W would replace the pinned sight but I did not want to send it back. They are smoooth.