Got a pic of the broken stock? Depends where it's broken to determine if it can be fixed or not.
I have the .410 version.
Mine was made in the teen's or early 20's. It was hard to get parts for. My sear was just worn out. Gun store/shop took everything off that could be taken off and replaced with parts from a brand-new shotgun. It was all the same except the trigger guard assembly case is made of high impact injection molded Acetal (plastic)