What do banks have that need military surplus parts? Transporting money, and precious assets is serious work. With the declining economic condition, it is very vital to watch out for those entities that are willing to steal money and compromise the safety of the people who are tasked to deliver them. As such, you need premium quality military surplus parts. When the carriers are designed, they need parts that comply to military standards when it comes to structure and reliability of the parts to withstand risks like bullets, or sometimes, explosions.
There are real world risks like these and it is important for banks to invest on such vehicles since the amount of money they have to deliver normally would cost them to be in big economic crisis if they were to be stolen or compromised by other people. With such risks, financial industries have all the reason to make use of these military surplus parts to ensure that their trucks are implemented with the right stuff for safety and security.