Very impressive work. The designs are very imaginative, but I'm gobsmacked by the whole package!
Personally, I wouldn't used something like this for storing my collection of weapons because of the risk of loss in a fire. However, I can see this as a way of safely storing weapons throughout the house so that they are readily at hand should you need one. Having a pistol or carbine safely away from curious children, but still quick to get to, would be a serious plus.
I would equate this with the difference between Cover and Concealment always being talked about in tactical circles. Both are good and should be used as you can.
Excellent work, hoss.