When found in the wild, a Gun Safe must receive 5000 points of damage before the lock 'layer' is broken and it becomes accessible. A Gun Safe cannot be dismantled, scrapped, melted in a forge or used as source of combustible fuel. A destroyed Gun Safe will not drop anything and the contents will be lost.
Crafting a Gun Safe is easy but due to the crafting recipe requiring multiple steel ingots it is very expensive on resources. They can often be found in the attics of houses in towns or on the ground floor inside buildings, usually secured behind Iron Bars and they can contain some very useful items and weapons. A Gun Safe is a type of secure storage that just like a Desk Safe or a Wall Safe can be locked and unlocked by the player.