Can't help with how many but they weren't around long. I had one but never fired it, planned to give it to my son but he grew tall too fast, so it would have been a might short. A very fine little rifle though! Wish now (as always) I had kept it. I believe they made them in 22 LR and 22 Mag. Mid 80's would be correct time period.
Even duct tape can't fix stupid....but it can muffle the sound!