No experience with it but, perhaps the Kahr PM45? I owned the PM9 and it was initially under a recall for mis-milled slide. Repaired under warranty. This is way back when they first came out. Worked like a gem after that. No failures whatsoever.
The new Semmerling .45 is out. However, it has to be re-cocked, if you will, after each shot. Also, they are upwards of $4400.00.