If you run a gas blowback gun, gas is the fuel that brings it to life. The right gas gives you smooth cycling, consistent power, and that satisfying recoil, while the wrong one can leave you shooting weakly or, worse, stressing your seals. Understanding your gas options and matching them to your gun and the weather is the key to keeping a gas gun running sweet.
We stock airsoft gas for every gas blowback setup, including green gas, high-pressure red gas, and low-pressure options from Nuprol and Rebel, plus propane adapters. Browse the range below and keep your gas gun fed.
Green gas is the standard fuel for most airsoft gas guns. It is easy to use, tops up in seconds, and the quality options contain silicone to keep your seals lubricated as you shoot. But not all gas is the same pressure, and that is where performance comes in.
Brands like Rebel use a colour system to show pressure. High-pressure red gas, like the Rebel HP-300S, hits hardest and performs best in the cold. Mid-pressure green gas, like the Rebel MP-200Z, is the smooth all-rounder for normal conditions. Low-pressure blue gas, like the LP-100X, is gentler, ideal for guns that recommend a lower pressure or for hot days when standard gas would run too hot.
The two things that decide your gas choice are your gun and the temperature. Always check what your gun’s manufacturer recommends, as running too high a pressure can damage seals and internals on a gun designed for lower-pressure gas. Then factor in the weather. Gas pressure rises with heat and falls with cold, so a higher-pressure gas keeps you cycling strongly on a cold winter morning, while a lower-pressure gas stops a gun running too hot in summer.
Getting this balance right keeps your FPS consistent and your gun healthy all year round.
Most gas guns run on green gas filled into the magazine, which is smooth, easy to top up, and the everyday choice. CO2 comes in disposable capsules loaded into the magazine and runs at a much higher pressure, giving harder recoil and far better cold-weather performance, at the cost of more wear on the seals. Some guns are designed for one or the other, so always use what your gun is built for.
For the guns themselves, see our gas blowback rifles and airsoft pistols.
Use the gas your gun’s manufacturer recommends. Most gas guns run on green gas, with the pressure chosen to suit the gun and the weather. Running too high a pressure can damage a gun designed for lower-pressure gas, so check the recommendation first. Higher-pressure gas suits cold weather, lower-pressure gas suits hot days or guns that specify it.
Green gas is filled into the magazine and is smooth, easy to top up, and the everyday choice for most gas guns. CO2 comes in disposable capsules, runs at a much higher pressure for harder recoil and better cold performance, but causes more seal wear. Use whichever your gun is designed for, as they are not always interchangeable.
Gas pressure drops as the temperature falls, so green gas guns lose velocity and may cycle weakly on cold days. Using a higher-pressure gas, such as a red or high-pressure green gas, helps maintain performance in the cold, as does keeping your magazines warm. CO2 also handles cold weather far better thanks to its higher operating pressure.
