Engagement distance in airsoft is the maximum distance at which a player can fire and have a valid hit. This distance is determined by the type of airsoft gun being used and the type of BBs being used. The most common engagement distance for airsoft is 30 meters, although it can vary depending on the gun and BBs. Engagement distance is important to keep in mind when playing an airsoft game, as it ensures that all players are playing safely. It also ensures fair play between players, as those who are further away from their opponents are less likely to score a hit. In general, the heavier the BB being used and the higher velocity of the gun, the farther away a player can fire and still be considered a valid hit. Knowing the engagement distance of your airsoft gun is important for ensuring a safe and enjoyable gaming experience.