No longer will you have to choose between toughness and convenience when selecting a gear box you just have to select the size. Go with the small when you need a gear box that stands under 6.5-inches tall, but can still carry, store and protect up to 5 boxes of 9MM ammo or 4 boxes of .45 cal auto. When you need more capacity than that, choose a medium or large gear box, both of which feature a lift-out tray that's as durable as it is handy.