Airsoft is a military simulation sport in which players participate in mock combat with military-style mock weapons and tactics. Airsoft guns usually use 6 mm spherical pellets typically made of solid plastic. Developed in Japan in the 1950s, interest in Airsoft is growing throughout the world. Airsoft guns are used in military simulations as well as games, which can vary based on preference or local rules. Always wear protective gear when participating in an air soft battle.