<human>: Can you provide a brief overview of the text?

Hello Reddit!
So I live in an apartment with a friend from college and recently we rented out the third bedroom to a random from Craigslist. When we discussed the apartment and talked for the first time I mentioned mounted shooting as one of my hobbies which didn't really trigger a reaction from her. I keep my gun unloaded in a concealed gun locker in my room, which I also lock with a key when I am not there. The gun is legal and properly registered.

I don't see a reason to tell her about the gun and where I keep it. It would have probably made her SUPER uncomfortable to be by herself in a strangers house who casually mentions they are strapped and a sharpshooter when she came to visit. My friend believes that she should know about it, but I really don't think its necessary. If she was strongly opposed to guns, she would have likely reacted to mounted shooting being a hobby of mine. I don't wave it around, and I would prefer if a random from Craigslist didn't know where I keep it until we all get to know each other better. What do you think reddit? Is it my moral obligation to tell her this before she signs the year lease? FWIW we live in a urban east coast area that was formerly a part of the Confederacy. Guns aren't uncommon. 

ETA: So I mentioned it to her just now and as Redditors from LA mentioned she kind of freaked out. Totally didn't know what mounted shooting was and was all like "the idea of a gun in the space is a huge no". She hasn't responded to my offer to store off site for the year, so I don't yet know if just me having a gun in general is a deal breaker. Which would be kind of silly, I'm a federal employee that has been thoroughly vetted and am certified to carry (but don't have a gov issued weapon, only took the course so I can when/if I do get promoted) Thanks for all the replies! I read them all even if I didn't respond!
<bot>: Random craigslist roommate in my apartment. Didn't seem to mind that mounted shooting was a hobby of mine. Should I explicitly tell her about the gun I keep in a locked safe in my room?