Any gun, even the air, once a year firing. According to many people for self-defense, you can buy pneumatics. Despite the fact that wearing a loaded weapon is prohibited, as of today it is still in great demand. The main purpose of the pneumatic weapon in the 21st century - sports entertainment, completely worth the investment strength and resources. The first gun that uses compressed air to power the shot, firing a charge weight of 100 grams to a distance of 300 meters, was made of wood and metal. This itself is its size and weight reminiscent of a small country house. Engineering solutions, which were first implemented an unknown inventor of the 16th century in the arms, allows us to freely buy pneumatics, which are sold in stores almost all persons under 18 years of age.