Umarex

Power & Ammo

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.

• CO₂: great for crisp cycling and consistent trigger feel; keep cartridges at a moderate temperature for best results.

Take a look at this item that uses this type of power source:

Umarex DX17 Air NBB Steel BB Gun

• Magazines: Our extensive catalog includes multiple Umarex magazine types for airsoft, BB, and pellet platforms. Match your model to the correct mag—here is a popular example:

Umarex 9XP 20rd BB Magazine

• BB ammo: shop quality options in BB ammo and follow your model’s recommended BB type, follow this example for reference:

Umarex Precision Steel BBs 1500-Pack

Safety & Legality

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.

• Eye protection: wear rated protection every session—shop goggles/safety eyewear (and more gear in tactical gear)
• Transport & storage: keep guns secured, unloaded, and out of public view when moving them
• Know your rules: review guidance in legality and purchase requirements in terms & conditions

FAQ's

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.