I would probably buy more safe than I thought I would need. Those things ( guns ) have a knack for reproducing in the dark. First thing 'ya know, it's time to go shopping again.
I just bought a Fort Knox safe with an S and G combo lock. I don't like the electronic locks.
Mine holds a few more than five and my son now has the older Fort Knox safe.
Both are made in the USA and have worked fine for me. I might put a nite-lite in mine to keep the shenanigans down