These military ammo boxes are extremely high quality; made of all steel with a powder-coated interior and exterior. The rubber gasket that seals the lid is solid rubber to keep the moisture out of your can. Produced in accordance with Milspec MIL-DTL-3060 Rev G and to US gov drawing No 7553296. The only addition to this time-tested milspect design is the welded loop and coinciding latch slot for clearance of the welded loop to allow the can to have a lock placed on it. The opening after the lid is closed allows for a lock shank of up to 3/8th inch in thickness. Pressure tested in accordance to mil-dtl-3060g. We are also the only manufacturer to include 1 desiccant pack with the purchase, so you don\'t have to worry about buying them elsewhere! Finally, we include customizable pick and pluck foam with each ammo can (Foam not included in the non-locking 30+50 combo pack) If you are looking for the following products: locking storage box, locking box, metal case, ammunition storage box, ammo storage containers, ammo can man, metal can, ammo storage box, ammo storage, ammo storage cabinet, underground storage container, ammo locker, ammo can lock, metal ammo box, metal ammo can, ammo container, ammo lock, waterproof ammo box, gun and ammo safe, small ammo can, 12 gauge ammo box, large ammo can, ammo boxes for storage, 9mm, ammo box metal, ammo cans metal, ammo box 9mm, ammo safes for home, ammo organizer, ammo case 9mm, locking ammo box, 5.56 ammo storage, 20mm ammo can, ammo can large, ammo cases for storage, ammo can storage, metal cans, solid tactical ammo can, ammo can 30 cal, ammo cases, 9mm ammo can, ammo storage locker, ammo can lock, 50mm ammo can, ammo can organizer