Do you mean a .22lr top end conversion kit? I got a small frame .22 conversion top end some years ago and it fits my (4 different) 9mm Tanfoglios and my SAR B6p, But you need stout .22 LR ammo to get it to run. The high speed stuff. It never locks open on the last shot, but I hear some of the springs need to be replaced and then it will lock open. I've used it twice.....I prefer to shoot my Ruger .22 If you don't find one, let me know and you can have mine.