I think the only QC issue with SCCY, and Kel Tec for that matter, is people expecting $800 fit and finish out of a $200 gun.
Both for me have been reasonably accurate and reliable.
I used to be able to hit a 10x10 steel plate at 25 yards with my P3AT, and shot it so much that the recoil spring...
I disagree.
I've had mine for probably 8 -10 years. It's never given me an issue.
It was one of, if not the, smallest 9mm pistols that could hold 10.rounds when I got it.