I think that is wise thinking. I have a few firearms in my safe, but I never had the desire to try to harm myself with them. I am very fortunate in this way. My concern is handling a firearm when I am manic where I am impulsive with a lack of judgement.

As far as the OP is concerned, I have heard here on PC that thoughts of sui is one thing. However if you have made a plan, that is when an IP visit may be warranted. I may be wrong here, but that is what I heard from posters here in your same situation. Take this for what it is worth.