Back about 1990 I bought one of these. They had a 7 shot and 8 shot version. Parts made in West Germany, imported into the U.S. and assembled.
Mine has been excellent. They suggested for 100% functioning to use "hyper-velocity" ammo like CCI Stingers. And they work as specified in mine. However I also tried out a number of cheap standard velocity .22s that would function reliably and found that Remington Thunderbolts worked well.
It cost under $200.00 back then and they show up on the gun auctions for around $200.00 now.