Umarex 12g CO2 Cartridges for Airguns — Pack of 50, Factory-Tested Clean & Consistent Pressure

Umarex 12-gram CO2 cartridges (pack of 50) are precision-tested gas canisters designed to deliver clean, consistent power for airguns and CO2-powered pistols and rifles.

Good CO2 matters: impurities or inconsistent fill can shorten valve life, erode seals, and cause erratic performance. Umarex manufactures its 12 g cartridges to consistent size and cleanliness standards so you get reliable pressure, fewer maintenance issues, and predictable shot counts across compatible airguns. This 50-count bulk pack keeps you stocked for range sessions, training, or competition without frequent restocking.

How do Umarex 12 g cartridges protect my airgun?

Clean internal gas and consistent sealing reduce the buildup of residues that can clog valves or accelerate O-ring wear. Using standardized cartridges helps maintain the intended puncture and flow characteristics of your gun’s CO2 system.

• Factory-tested for cleanliness to minimize valve deposits
• Uniform dimensions to prevent puncture-head damage
• Reduced risk of premature O-ring and seal degradation
• Compatible with most pistols and rifles designed for 12 g CO2

How many shots can I expect per cartridge?

Shot count varies by gun model, caliber, and ambient temperature. High-consumption blowback pistols will use more gas per shot than single-stroke target pistols. Expect fewer shots in cold conditions because CO2 pressure drops as temperature falls.

• Typical target pistols: more shots per cartridge
• Blowback models: fewer shots per cartridge due to cycling losses
• Colder weather reduces usable pressure and shot count
• Manufacturer or model-specific manuals give best estimates

Are these cartridges safe and easy to install?

12 g CO2 cartridges are designed for user-friendly installation into compatible airguns. Follow the gun maker’s instructions for puncture, seating, and torque to avoid damaging the puncture assembly or seals. Store cartridges away from heat and never attempt to recharge or modify them.

• Single-use, prefilled cartridges—no refilling required
• Install per your firearm’s user manual to ensure proper seal
• Keep cartridges in a cool, dry place; avoid direct sunlight
• Do not puncture or expose to high temperatures

Why buy a 50-pack instead of single cartridges?

Buying in bulk reduces the frequency of purchases and usually lowers per-cartridge cost. A 50-pack is convenient for frequent shooters, clubs, instructors, and event organizers who need a reliable supply for practice or competition.

• Cost-effective bulk supply for regular range users
• Good for coaches, clubs, and group training sessions
• Fewer shopping trips—maintain consistent ammo and gas supply
• Packaged for easy storage and inventory management

Who is this for? Shooters who want dependable CO2 performance and lower maintenance headaches will benefit from Umarex’s 12 g cartridges. This 50-count is ideal for enthusiasts who use CO2 pistols and rifles frequently, instructors and clubs needing steady inventory, and anyone who prefers the convenience and consistency of factory-tested gas cartridges. Always use cartridges in guns designed for 12 g CO2 and follow your airgun manufacturer’s safety and installation guidelines.