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Gas-powered airsoft guns use the pneumatic potential energy stored within compressed gas to drive the shooting mechanism, and thus operate according to an entirely different design principle to spring- or electrically powered airsoft guns. The most common type seen is the gas blowback (GBB) guns.
The airsoft guns used are mostly magazine-fed, with some having manual/battery motor-powered spring-piston pump power plants similar to Nerf Blasters, or pneumatically powered by replaceable compressed gas (e.g. propane ("green gas"), 1,1,1,2-tetrafluoroethane or CO 2) canisters. [2]
Velocity vs. energy chart for 6 mm Airsoft pellets. The pellet speed of spring-powered and automatic electric guns is determined in large part by the tension of the gun's main spring. Muzzle velocity limits are between 90 and 120 m/s (300 and 390 ft/s) for AEGs and 120 to 170 m/s (390–560 ft/s) for single-shot spring sniper rifles. [12]
Tokyo Marui was the first company to introduce airsoft guns powered solely by electric motor gearbox-driven spring-piston assembly in 1992, which they called "automatic electric gun" (AEG). This compact air pump system was implemented in their first battery-powered automatic firing replica, the FAMAS F1. Other airsoft guns were then introduced.
The spring-piston pump is either manually cocked (like a spring-piston gun) or more commonly driven by an electric motor-gearbox assembly powered by batteries (mostly identical to airsoft automatic electric guns (AEG)). Whilst the pressure output is identical to most airsoft guns via the use of compressed air, the uneven spherical shape, lower ...
A para-athlete competing with a match air rifle A collection of lever-action, spring-piston air rifles. An air gun or airgun is a gun that uses energy from compressed air or other gases that are mechanically pressurized and then released to propel and accelerate projectiles, similar to the principle of the primitive blowgun.
A Powerlet cartridge, commonly referred to as a CO 2 charger, is a small disposable metal gas cylinder holding 8–12 grams (0.28–0.42 oz) of liquid CO 2 and often a small quantity of lubricating oil, used as a pneumatic power source for certain air guns, airsoft guns, paintball guns, carbonation, and for quick inflation of various devices ...
Airsoft and paintball guns are a popular toy that operates this way; when used with adequate safety equipment (eye protection at a minimum) these may be used in games involving shooting at other players. BB guns and other low powered air guns are often marketed towards the youth market. However, in many countries they are subject to normal ...