This is not a conversation about guns. This is a conversation about items that have withstood abuse that are near unbreakable.
Some items I have heard referenced as AK47 of:
Gerber MP600: It’s a multi tool
Old Thinkpad Laptops
Mag lights
Toyota Hilux
Victorinox uses a steel that favours corrosion resistance over hardness. They’re easy to sharpen though, I’ve even used the underside of a ceramic coffee cup.