Umarex | CO₂ Cartridges | 12g | Silver

Umarex CO2 Cartridges 12gr – Consistent pressure for year-round operation

These 12 gram CO2 cartridges provide the required gas pressure for powering airsoft replicas and air guns. The silver cartridges contain liquid carbon dioxide that delivers stable pressure output regardless of ambient temperature, maintaining consistent performance down to -10°C.

Construction and materials

Each cartridge contains 12 grams of liquid CO2 under high pressure in a compact steel cylinder. The silver finish indicates standard CO2 specification. When punctured in the replica's magazine or adapter, the CO2 rapidly expands to provide propellant pressure for BB propulsion.

Application and use

These cartridges are designed for airsoft and air rifle applications, specifically for NBB (Non-Blowback) and GBB (Gas-Blowback) pistols and revolvers built for CO2 operation. The 12gr size fits standard CO2 magazines and adapters found in most CO2-compatible replicas.

Integration and compatibility

Compatible with replicas featuring CO2 magazines or adapters designed for 12gr cartridges. Not suitable for green gas or HPA systems. Verify your replica's specifications before use – CO2 operates at higher pressure than green gas and may damage replicas not rated for CO2 use.

Maintenance and lifecycle

Single-use cartridges should be fully depleted once punctured. Store unused cartridges in a cool, dry location. Replace O-rings in magazines regularly to prevent leaks and ensure proper seal when installing new cartridges.