The Stars pistols were imported by Interarms. when they all went belly up, one company in New Jersey bought up all their inventory of parts. The reason I needed to know was because I had a firestar in .45acp with a cracked slide.
They told me that this was a common occurrence with the .45 acps. he also told me that the .40's also had a particular problem(extractor, or ejector), one which was common, but I cannot remember at this time. It appears as if the only firestars that do not have any problems at all are the 9mm's.