MTM 4-Can Ammo Crate - A rugged tactical carrying crate for multi-caliber ammo storage and transport. Comes with four, O-ring sealed 30 Caliber ammo cans(AC30T) for multi-caliber ammo storage. 30 Caliber ammo cans are a convenient size to store all types of bulk ammo. Stackable and strapableFour tie down spots Rugged tactical carrying crate Convenient size to store all types of bulk ammo