
Most Umarex CO₂ guns run on standard 12g cartridges, while select platforms may use larger cylinders or alternate gas systems.
Stock up on CO₂ / green gas so you’re not stuck mid-session, and choose ammo that matches your model’s specifications.
Take a look at some items that use this type of power source and the powersource itself:
Umarex DX17 Air NBB Steel BB Gun
Elite Force 1911 Tac Airsoft Gun
HK MP5 K-PDW CO2 Steel BB Submachine Gun
Umarex SA10 3 x 8rd Pellet/BB Magazine
Umarex H&K MP7 Airsoft SMG 40rd Magazine
Umarex Precision Steel BBs 1500-Pack
Elite Force Premium Airsoft BBs 5000ct
Always treat airsoft guns with the same respect as real firearms: practice safe handling, use protective gear, and follow local rules for use and transport.
Do Umarex guns use standard 12g CO₂?
Many Umarex CO₂ guns run on standard 12g cartridges, but some models use different systems or CO₂-in-mag designs.
Which BBs work best for Umarex?
Use the ammo your Umarex platform is designed for—steel BBs for BB guns, 6mm plastic for airsoft, and pellets for pellet models.
How do I maintain Umarex magazines and seals?
Keep mags clean, avoid storing CO₂ under pressure long-term, and check seals if you notice leaks. For oils, tools, and cleaning supplies, visit gun maintenance.