(4) MAC30 - Ammo Can Tray for Metal 30 Cal. Cans - Dark Earth
(4) MAC50 - Ammo Can Tray for Metal 50 Cal. Cans - Dark Earth
Each tray has slots for 4 ammo cans, so total this could be storage for (16) 30 cal cans and (16) 50 cal cans.
$10 each, or all 8 for $70.