"Gas operated" refers to a mechanism that uses gas pressure to perform work, commonly found in firearms, engines, and various machinery. In firearms, for example, the gas from ignited gunpowder is redirected to cycle the action, eject spent cartridges, and load new rounds. This system enhances the efficiency and speed of firing. In engines, gas-operated systems utilize the pressure from combustion gases to drive pistons or turbines, converting chemical energy into mechanical energy. This principle is essential in many vehicles and equipment, contributing to their power and performance. Examples include internal combustion engines and gas-operated airsoft guns.