I'm an aspiring gunsmith, and one of the first things I've been learning is how to refinish an old rifle stock. Refinishing only. I want to know if i need an ffl even though Im only working with the wood stock. I told the person to hold on to the barrel and the action, while i just work on the wood itself. Is it just considered wood working? Or am i doing something illegal by keeping the stock at my house for a few weeks??