I was entertaining the idea of getting into refinishing firearms. That involves taking possession of customers firearms which entails having a FFL. then it gets messy. FFL 01 or is it a FFL 07. 01 is dealer/gunsmith. 07 is manufacturer. seems pretty straight forward, I'm just going to refinish an existing firearm, but If I say recrown the barrel or drill and tap for a scope that could improve the accuracy of the firearm, or hone the barrel, now I'm a fricken manufacturer? And if i'm a manufacturer, I have to register with the state department and pay an annual fee of over 2k eventhough I'm not importing or exporting small arms. And looking at the definitions/regs/rule on the ATF and State Department website is making my brain hurt.