Cost of operation, accuracy, and realism are among the countless reasons why gas airsoft guns are rapidly increasing in popularity across the country. Owning a gas airsoft gun involves selecting the appropriate propellant, whether it’s 134A, green gas, or CO2 (which are the most frequently used). The correct use of propellant will ensure the best operation and maintenance of your gas airsoft gun.

Most gas guns have been designed to use just one kind of gas, but this is not the only factor by which one should determine the best gas to use. Other factors like the temperature can seriously affect the performance of the gun because of the way the gas reacts. For instance, a gas that works well at room temperature may be too powerful in high heat, which can cause significant damage to your airsoft gun.

Cold climates can also influence the type of propellant you require for your gas airsoft gun. If you live in a consistently cold area, the gas that the manufacturer suggests you use may not work because the pressure inside the gun has gone too low to support the firing action. A case of reduced pressure can also cause the valve to stay open following fire, resulting in the loss of all the gas in the gun.

Using a propellant in a temperature that is too hot or too cold can cause damage to your airsoft gun so be wary of the temperature. Also, avoid using a gas that is more powerful than the gas the manufacturer originally intended for that design.

The most commonly used gas for airsoft guns of Japanese origin (and other selected brands of different origin) is 134A. It can be used in practically any climate that is above forty degrees Fahrenheit, which is why it is such a popular gas to use. If you notice your airsoft gun is misfiring while using 134A, it could mean you need a more powerful gas like propane or green gas.

Just about every other non-Japanese airsoft gun on the market is made for (or at least can use) green gas, the most popular airsoft gun propellant. Green gas is more powerful than 134A, so you need to be cautious in hotter weather to avoid causing damage to your gun.

In terms of quality, there is a wide range of airsoft guns using green gas, so it isn’t exactly possible to determine the exact temperature at which you should switch to a less powerful gas. You can play it safe by always keeping around some 134A and using that when the temperature exceeds 100 degrees F. You can also decide on the right gas by considering how often you’re using it and the amount of direct sunlight. For example, direct sunlight will heat up the gas faster whereas frequent firing actually decreased pressure and subsequently the temperature of the gun.

CO2 has the best temperature range for gas airsoft guns, though there are a few disadvantages that make this propellant and its related guns the least popular within their category. For one, almost every single CO2 airsoft gun takes CO2 gas and nothing else; for two, these guns are much more complex to deal with than other models. On top of everything, the CO2 ones are also rather pricey.

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