That sounded so incredible I searched a bit more. There was a translation error in early reports.
TL:DR : It was 20,000 ROUNDS of M-16 ammo, and the 9mm ammo, shooting ear protectors, and other stuff you’d find at a shooting range, and a printer.
Here is the updated story
http://news.kuwaittimes.net/2013/04/07/20000-m-16-rifle-rounds-stolen-from-moi-warehouse/
20,000 M-16 rifle rounds stolen from MoI warehouse
KUWAIT: A security source said that 20,000 M-16 rifle rounds, and 15,000 9mm pistol rounds, along with an undetermined shooting ear protectors, and a printer were stolen from the shooting warehouse of the Minstry of Interior in Subbiya area. The source said three doors were broken and the entire content was removed, adding that there were no guards at the place according to the officer who informed about the theft. The officer did not accuse any one. Directors are investigating the matter
Thanks for the update.