.41AE kits and guns by different companies seems to have gotten started and then disappeared altogether.
There were a number of reasons for this.Whether it was function problems, lack of magazines, lack of market, and the introduction of the .40 S&W cartridge, and others, the .41AE became enmeshed in controversy.
There seem to be guns that function well with the .41 caliber cartridge, but many did not for various reasons.
Looked for these in every source I have and came up empty.Production may have resulted in prototypes only for Taurus. Here anyway.