While not a factory option (at least I've never heard of it) a few years ago the family of an old fellow came into my friends shop to sell his collection, many nice pieces and many that he had 'cobbled', to me it seemed he had mentally slipped over the years, he had mutilated a few highly collectable guns.
One that caught my eye was an older M38 humpback that he had fitted with a 6" barrel. It was truely the stupidest looking thing I'd ever seen. What he was thinking was light years beyond me.
I did get the pick of the litter out of that deal, an original near mint 25-2 that had been treated to an excellent trigger job and some other mod's, the most accurate handgun I own.
Since J frames are made to be a concealable item I can't see any sense in a target model, just defies logic.
RD

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Got a Phd from Hard Knocks U