The LWS32 is small. I've toyed with the idea of modifying one magazine to take standard length fmj.
This may work(?),,just brainstorming,,
IF it works, it's likely already been done since the guns have been around a while...
There's a spacer in the 32 magazine that fits against the rear wall/spine of the mag. It's there to make sure the HP rds are held forward for max reliability.
It also is part of the TD for the mag as the L shaped bottom extension of the spacer contains the dimple that locks the floor plate into place.
The spacer is full length and sits behind the mag spring in operation.
If the upper portion was removed to allow a bit of extra room in the OA front to back length of the mag, it may be just enough to allow FMJ rds of some mfg's to work reliably.
Admittedly it's very thin metal, but it may be just enough for some brands of FMJ to work (more) reliably.
You would have to leave some length of the back/spine portion in tact to support the L shaped piece with the impressed dimple in it so the Floor Plate lock assembly remains functional.
I've never tried it, don't have one in hand, so it's just a theory looking at the schematics and drawing from my past experience with these which was long ago and not that extensive anyway.