Evike – 12 Gram CO2 Cartridge

Fit is the thing that goes wrong with cheap 12g cartridges, and Evike addresses it directly: a maximum diameter of 18.90mm, held to tolerance so the cartridge seats properly in the equipment it is meant for. The cartridges carry ASTM F590 certification, the consumer safety specification covering airsoft and airgun projectiles and propellants, and are tested for performance, quality, safety and sizing. Manufacture is in Taiwan or the USA on world-leading equipment.

• Certified ASTM F590 Standard Consumer Safety Specification for Airsoft & Airgun Projectiles and Propellants
• Precision manufactured with maximum diameter = 18.90mm for best compatibility
• Performance, quality, safety and sizing tested to highest standards
• Premium precision grade made in Taiwan or USA with world-leading equipment directly from the authority of 12g CO2 cartridges

Why the 18.90mm diameter matters

A CO cartridge that is a fraction too wide or too narrow will not seat properly in a piercing mechanism, which is where cheaper cartridges tend to fail. Evike holds this one to a maximum diameter of 18.90mm specifically for reliable fit, so it is worth checking that figure against your own equipment's specification if you are used to a different brand.

What the ASTM F590 certification covers

ASTM F590 is the consumer safety specification for airsoft and airgun projectiles and propellants, and Evike certifies this cartridge against it rather than relying on a general CO spec. Manufacture takes place in Taiwan or the USA, and each batch is tested for performance, quality, safety and sizing before it ships, which is the basis for the certification rather than a claim made without testing behind it.

Who the certification suits

A range or club that requires certified propellant for insurance or safety-policy reasons is the clearest case for choosing a certified cartridge over a generic one, since the ASTM F590 mark gives a documented standard to point to rather than a manufacturer's own claim. For casual use where no certification is required, the practical benefit is still the tighter diameter tolerance and the more consistent seating it gives across a box.