Armory
The armory is a strong room where the ship's complement of weapons is stored. The walls are lined with reinforced armor plating to protect the rest of the ship against accidental detonation or weapon discharges.
Most armories also come equipped with complex locks so the weapons can be secured. On many ships, passengers and crew are not permitted to carry weapons while aboard - a preventive measure against mutiny, piracy and accidental hull breach. The armory aboard can only be accessed by those with the correct codes (usually the ship's senior officers and security team.)
Where military vessels are concerned, the number of armouries built into the ship's design is based on crew size. For an example, one armoury is installed for either every 50 crew members, or every 10 marines, in order to provide adequate storage for equipment, weapons and ammunition.