My Kadet Kit practically lives on my 75B, and I also use it on occasion on my compact 75D PCR. They are reliable, accurate, and fun .22's. I like how CZ kept the unit steel, and skeletonized the part of the slide that moves to make it lighter instead of making the entire thing out of Zamak or aluminum. It is an old world style conversion unit that works great. As with anything you usually get what you pay for as they are not inexpensive anymore.