Army-Navy stores?

Usage examples of arsenals.

They were also convinced that the Iraqis had retained the know-how and probably much of the equipment they needed to rebuild their WMD and ballistic missile arsenals and to get back to work building nuclear weapons.

Behind these every one of the thirty-four miles to Wilmington was covered with the fire of the best guns the English arsenals could produce, mounted on forts built at every advantageous spot.