Let's talk about self storage.

I had a guy call me and ask if he could store parts for guns that he builds at his home.  He is low volume, it is a hobby/side-hustle.  He said he needs to get a letter for the ATF that says something to the effect of, "I do not have any issue with allowing _____ to store firearms and firearm parts at my facility."

He said he will only be storing parts that he will come get to put together at his house.  No sales on my site.  No ammunition at all.  He will open the door for me to inspect at any time.  

This is a new one for me.  I personally don't care about him storing the parts as long as he isn't conducting business on site, but I'm not sure if there are regulations I am not aware of, or something I'm not thinking about.  Any advice?

I had a guy call me and ask if he could store parts for guns that he builds at his home.  He is low volume, it is a hobby/side-hustle.  He said he needs to get a letter for the ATF that says something to the effect of, "I do not have any issue with allowing _____ to store firearms and firearm parts at my facility."

He said he will only be storing parts that he will come get to put together at his house.  No sales on my site.  No ammunition at all.  He will open the door for me to inspect at any time.  

This is a new one for me.  I personally don't care about him storing the parts as long as he isn't conducting business on site, but I'm not sure if there are regulations I am not aware of, or something I'm not thinking about.  Any advice?

I had a guy call me and ask if he could store parts for guns that he builds at his home.  He is low volume, it is a hobby/side-hustle.  He said he needs to get a letter for the ATF that says something to the effect of, "I do not have any issue with allowing _____ to store firearms and firearm parts at my facility."

He said he will only be storing parts that he will come get to put together at his house.  No sales on my site.  No ammunition at all.  He will open the door for me to inspect at any time.  

This is a new one for me.  I personally don't care about him storing the parts as long as he isn't conducting business on site, but I'm not sure if there are regulations I am not aware of, or something I'm not thinking about.  Any advice?