If it does exist, it should not.
"ACP" implies semi-auto, not wheelgun, plus it's a low-power round. With a slide around it as protection from the bumps and bruises of the cruel world that a meatier wheelgun barrel haveth not?
The barrels in semi-autos of that genre tend to be damned THIN for that sort of circumstance.
No meat onct bored. No room for a meaty liner.
Bad combination. Very.
Better to make a new barrel, outright. Not even all that hard if it is "blowback" and haveth no lug or cam. See Walther & similar.
Better yet to not waste the time and effort.
Just hang it on the wall as a decorator and go find a safer and better "shooter".
8mm barrel has a similar bore diameter but most probably a different twist rate but it could be used to make a new barrel if nothing else is available.
You guys need to get out and look around some.
Pardini HP, Cal. 32 ACP, 5" Barrel for NRA Bullseye, Pardini USA Store
It really wasn't chambered for 32 ACP but it will fire & eject them though the case bulges .