Naval rifles are large-caliber artillery pieces designed for use on warships. They are primarily used to engage surface targets, provide naval gunfire support for ground forces, and defend against aerial threats. These weapons are typically mounted on battleships, cruisers, and destroyers, and they can fire a variety of ammunition types, including high-explosive shells and armor-piercing projectiles. The development of naval rifles began in the 19th century, evolving from smaller cannons to more advanced breech-loading and automatic systems. Notable examples include the Bofors 40 mm and the 5-inch/54 caliber Mark 45, which are still in use today. These rifles play a crucial role in modern naval warfare, enhancing a ship's combat capabilities.