Mr. Havey,
As my first, and still only, semi-auto pistol, I acquired a Walther P1 a few years ago; it's the post-war successor to the P-38. It arrived in brand new condition but when I fired it, it quickly, repeatedly jammed. the magzines were equally "new".
The importer quickly sent me two or three replacement magazines, used ones, and, since then, I've had zero stove-piping occurances.
Regards