I had always wondered why the difference in capacity between the thunder 380 and the cc model. After looking at both magazines they seem the same and would feed and eject when I racked the slide by hand. Today I took a cc model magazine and fired some rounds out of a thunder 380 non cc and it functioned like it was supposed to. So I guess I'm going to buy cc magazines, why only have 7 rounds when you can have 8.