M&M Parts
I'm told that Mike, the guy at this number, bought out the Star inventory when Star closed up shop in the US. He apparently has many parts and was a Star armorer.
703 739 2150.
I've got several Stars, but haven't needed parts yet.
(Another acquaintance called Mike yesterday looking for an extractor for the MD-40, but Mike didn't have one. The acquaintance she Mike had LOTS of other stuff, though.)
Let us know if this referral works.