Yeah, not really "clones" just imperfections that the company wouldn't except is a better term. Slight threading issues etc.. 100% authentic just not from the company that designed them but from the manufacturer that made them. Like how LG and Samsung sell batteries to EFest etc... I'd be more worried about a battery then a mod or tank though lol.it says 100 percent authentic, first time dealing with efun so its a gamble. But yeah everything is made in china like you said.