Mil-Tec US M9 50 Cal Large Steel Ammo BoxA reproduction of the US ammo box, the US M9 50 Cal large ammo steel box from Mil Tec is made from tough durable steel and is taller than other ammo boxes. A rubber seal inside the lid makes it watertight while a steel collapsible handle makes for easy carrying. To secure the ammo box there is a side locking system that has an extra handle below it. Ammunition boxes can also be used to store various items such as tools, documents or hobby equipment.