3-Pack Mil-Spec M2A1 50 Cal Empty Ammo Cans (Can be used for any Ammo) https://www.amazon.com/gp/product/B00DV4SVD0/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Here is a Great Video on Ammo Underwater for a Year!!! https://youtu.be/MqIUPAj4PbU Shermann