Swamp,
I have a Ciener 22 conversion for my Beretta 92FS and it works great. It is ammo specific to a couple different brands of 22 rimfire..mine likes Winchester super X high velocity. The kit on the beretta is a little bit spartan...no safety, non adjustable sights, slide doesn't lock back after the last round, and no decocking lever...but it serves its purpose well. Its purpose to me is to be able to practice on my Beretta for cheap and not have to worry about recoil while I concentrate on focusing in on that long Beretta trigger pull. I should also note that my 22 con kit is quite accurate as well so no need to adjust the sights.
Cheers,
Paul