Mesa's 1/2 hour fire rated Ammo Safe is the perfect addition to your gun safe. Reduce accidents by keeping ammo and guns separate with the MGL24AS-C. With its approx. 16.5 cu. ft. capacity and 4 sturdy, adjustable shelves, the MGL24AS-C will meet the needs of even the most avid ammo collector. The mechanical dial lock provides security and function after an EMP attack.