I have the same symbol on my B7. I saw Tom Gaylords review of a chineese TS 45 on the Pyarimid Air Blog Fri Sept 25th and it is the same gun that we have. I believe it is the Norinco symbol. In Toms review in second pic look close and you can see that symbol. Mike M repaired (put back together) mime months ago. It is the same gun as yours and in the blog.