Precision-built air pistols and air rifles depend on quality ammunition and fuel to perform up to their full potential. A higher-quality, cleaner gas in a superior-engineered cylinder can influence the lifetime and performance of any airgun. Investing in these premium Sig Sauer Prefilled CO2 Cylinders is a simple way to ensure longer-lasting, precision performance. They fit most airguns designed for use with 88g/90g CO2 cylinders and have a compact, lightweight design. Each of the two superior engineered, large air reservoir CO2 cartridges provide a stable power output for rapid firing.