Airsoft is a growing action sport that can be played in several ways. Airsoft guns can be used to practice shooting targets or it can be played in the form of a military simulation. Airsoft guns can be powered by spring, battery, gas, CO2, as well as high pressure air. They fire 6mm plastic BBs which vary in weight and the weight to be used are usually determined by the velocity, or FPS of the airsoft gun. The BBs are loaded into magazines which also vary in the amount of BBs they hold.