I AM LOOKING FOR A BOLT OR BOLT ASSEMBLY FOR SP 10 GA PM ME THANKS
Natchez shooters supply may have one in stock. Good Luck
Maybe try Numrich Gun Parts corp.
There is a guy I see on ebay all the time selling rough cut Ithaca Mag 10 bolts for real cheap , not sure if its compatible , or you have the machining skills to finish the work needed
take a look on gunbroker also