👉 A sub-weapon, also known as a secondary weapon or auxiliary weapon, is an additional firearm or projectile device that a primary weapon carries or is mounted on. These can include things like a pistol, rifle, or even grenades, and serve to augment the primary weapon's capabilities by providing alternative means of attack or defense. Sub-weapons are often used to increase versatility, extend range, or offer a different type of firepower, such as suppressing fire or close-quarters combat. They can be integrated into a weapon's design for various tactical purposes, enhancing the user's overall combat effectiveness.