My plan is to buy a stripped lower and a pistol buffer and tube. I'll build it into a pistol lower. Then I'll take photos of it to document that it started life as a pistol lower. I'll then replace the buffer tube with a rifle tube and build a rifle. Do I need to do anything else to preserve my right to convert it back to a pistol later? For example, do I also have to get a pistol upper now and put it in the photo? The deal is that I may want to build a 9 mm pistol later, but not now. Right now, I would just use it with a spare rifle upper I have.
Thanks.
Thanks.