Gas-powered airsoft replicas rely on consumable fuels to operate. The two most common choices are Green Gas and CO₂ - each with distinct properties, advantages and applications. Knowing the difference is key for every GBB pistol, rifle or SMG owner.
What is Green Gas?
Green Gas is the most widely used propellant for gas blowback airsoft guns (GBBs). It is essentially propane that has been refined for airsoft use: the odor has been removed and a small amount of silicone lubricant has been added. The silicone lightly lubricates O-rings, valves and moving parts with every shot, helping to extend the life of the replica. Green Gas is sold in pressurized cans with a nozzle for filling magazines directly.
Types of Green Gas
- Standard Green Gas: Around 110-120 PSI at room temperature. The all-around option for most GBB pistols and rifles with metal slides.
- Low Power Gas (Blue Gas, 144a): Lower pressure, designed for replicas with plastic slides (e.g. many Tokyo Marui models). Using standard Green Gas in these can damage the slide.
- High Power Gas (Red Gas, Black Gas): Higher pressure blends used in cold weather or heavy-slide replicas. They compensate for cooldown in winter but can damage standard replicas if misused.
What are CO₂ cartridges?
CO₂ cartridges are 12g disposable metal capsules, usually inserted into the magazine or grip. They deliver more power than Green Gas and maintain stable performance in cold weather. On average, a capsule provides 40-70 shots depending on the replica.
Green Gas vs CO₂
- Green Gas: Cheaper per fill, easier on internals, includes lubrication, but loses efficiency in cold weather.
- CO₂: Stronger, consistent in low temperatures, but harsher on seals and valves and more expensive per capsule.
Who uses Airsoft Gas & CO₂?
These fuels are essential for players who use gas-powered replicas:
- GBB pistol owners: The largest group of Green Gas and CO₂ users.
- GBBR rifle users: Realistic rifles that rely on gas for blowback action.
- SMGs and shotguns: Certain models run on gas or CO₂ for enhanced realism.
Advantages and functions
- Propellant: Provides the power to fire BBs downrange.
- Blowback operation: Cycles the slide or bolt for recoil and realism.
- Lubrication: Silicone in Green Gas helps maintain internal components.
- Cold weather performance: CO₂ outperforms Green Gas in low temperatures.
Safety and usage tips
- Always use trusted brands for both Green Gas and CO₂ cartridges.
- Do not overuse high-power gas unless your replica is built for it.
- Store cans and cartridges in cool, safe places away from heat.
- Dispose of empty CO₂ capsules properly - never refill them.
- Clean your replica regularly - gas does not replace proper maintenance.
Conclusion
Airsoft gases are essential for the operation of GBB replicas. Green Gas offers convenience, lubrication and lower running cost, while CO₂ provides power and reliability in the cold. The right choice depends on your replica, the climate and your playstyle. TacticalShop provides a wide range of Green Gas bottles and CO₂ cartridges to keep your airsoft guns running at peak performance.
Why shop at TacticalShop
- Free shipping on orders over €80
- Fast EU-wide delivery
- Reliable Green Gas and CO₂ stock
- Secure & flexible payment methods (card, PayPal, Klarna)
FAQ
Which gas is best for GBB pistols?
Standard Green Gas is best for metal-slide pistols, while low-power gas is recommended for plastic slides. CO₂ provides more power but wears parts faster.
Can I use Red Gas year-round?
No - Red Gas is designed for cold weather or heavy-slide replicas. Using it in standard replicas can cause damage.
How long does a CO₂ capsule last?
Typically 40-70 shots, depending on the replica and firing mode.
TL;DR
Airsoft gases - Green Gas and CO₂. Green Gas is ideal for most GBBs, while CO₂ offers stronger, consistent performance in cold weather. TacticalShop stocks both for reliable gameplay.
- Wide range of Green Gas and CO₂ cartridges
- Ready-to-ship products with expert support
Order your gas or CO₂ today and keep your GBB replica performing flawlessly.
