An extract on #airsoft
Unlike paintballs, airsoft pellets do not mark their target, and hits are not always visibly apparent. Though airsoft pellets may leave red skin marks or "welts" on their target, the game relies heavily on an honor system in which it is the ethical duty of the person who has been hit to call themselves out, regardless of whether or not anyone saw it happen.
Most airsoft guns are magazine-fed, with some (especially pistols) having replaceable compressed gas (e.g. propane, HFC-134a or CO2) canisters. Many airsoft guns also have mounting platforms compatible with firearm accessories, and tend to more closely resemble real guns. This makes them more popular for military simulation and historical reenactments.
For casual players, airsoft is much cheaper to try than paintball, with manual-cocking pistols costing as little as $5 apiece and airsoft pellets costing as little as 120 of a cent per round.
Gameplay varies in style and composition, but often range from short-term skirmishes, organized scenarios, close quarters battle, field, military simulations (MilSim) or historical reenactments. They are played in indoor courses and outdoor fields. Combat situations on the battlefield may involve the use of military tactics to achieve objectives set in each game. Participants may attempt to emulate the tactical equipment and accessories used by modern military and police organizations. A game is normally kept safe by trained professionals and the equipments are usually powered by gas or various types of batteries. A gun's power is checked through a chronograph and usually measured in feet per second (FPS). Different game sites allow a different amount of FPS, but different countries may also have a set FPS, and a gun shooting over the required FPS can be confiscated or not allowed to be used on airsoft sites; for instance, a sniper would usually have a higher FPS than a submachine gun, since a sniper needs a minimum engagement range to reduce the danger from being hit at close range by a powerful equipment.
Airsoft originated from Japan in the early 1970s. The name "Soft-Air" referred to the green gas used as a propellant. Originally designed for target shooting, their bullets could also hit humans without injury and thus became popular for casual war-games. Airsoft guns spread to the UK in the late 1980s and early 1990s with a company called LS. The guns were sold in pieces and had to be assembled before they were capable of firing pellets. Airsoft equipment was designed to closely emulate real guns. Since the mid-1980s, airsoft guns have been adapted with a purely recreational application in mind, and the sport is enjoyed by all ages. Airsoft replicas are produced globally, with the majority being manufactured in Asia. Many law enforcement agencies and military units within the US use Airsoft for force-on-force training drills.