The Arsenal is a building that uses stored iridium to produce weapons. It is very cheap to build and provides access to produce all the portable weapons in the game. It is recommended to get an Arsenal as early as possible, or else you could easily be overtaken or rushed.
The Arsenal contains 4 categories: Guns 1, Guns 2, Explosives, and Tools.
The weapons in this category are guns that are semi-automatically fired. The weapons contained in this category are the Pistol, Shotgun, and Sniper Rifle. The Arsenal also used to have the Anti armor rifle. (Anti Armor rifle has been removed since November 8th, 2018.)