Make sure you get something with some flexibility. You might find out, by closing the safe door very slowly that one or more pistols may touch rifles or other items already in the safe.
Being able to relocate things attached to the door is very helpful as almost every time I rearrange the rifles one of the pistols contacts something.
So I move the pistol a few inches. Or the rifles.
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All data is flawed, some just less so.
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