Sorry Jacko C Hing, don't know why I can't copy and paste Chinese here....
My question is: after I read your recommendation, I bought one last night and it's fine when I tested it. But just right after I returned home and it couldn't blow even for the first shot. (Really 'black boy'!) I took the gun back to the store today and they said it could be the magazine problem and they couldn't fix it and couldn't help.
Because the system of this gun is different from other big brands like KSC, Marui, do you know where can I get the magazine fixed? Thanks a lot for your help!