The name of the building is obliged square Arms that is located on the northeast corner in Kotor. The building was erected at this site in mind a number of reasons: it is under the protection of a powerful ancient Bastion of the Citadel, with its towering tower of Campana and the Kotor shipyard on the waterfront, right in front of the Bastion. All this makes the building successful from a military point of view.

Before, in the square of weapons of the defenders of the city were prepared to repel the attacks of enemies of the city. In 1539 the invasion of the famous Algerian pirates pirate Barbarossa of Hagridden. To break through the defense of the city attackers and failed, which contributed to their retreat after three days of siege.

Today in the town of Kotor Arsenal is urban war galley called "St. Trifon".

The reconstruction of the building in the early sixties of the twentieth century brought with it a significant change in the appearance of the building was cleaned with a high steep roof, instead of one floor to the mighty arches, towering above the basement, there was several floors. On the front door was preserved ancient inscription stating that there are materials for the crew Bay. Before the floor could be reached via a stone staircase, but it was removed in the late nineteenth century. This was due to the conversion of the building of the military Arsenal in the bakery, which supplied bread whole Kotor garrison.

Today the Arsenal building added to the side walls, leading to the second floor. So, today you can see two floors and a basement.