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Clamping plug for the CO2 magazine of the Sig Sauer SP2022 (Cybergun / KWC), used to hold and strike the cartridge.
Ensuresa tight seal and pressurization
Essential component for proper operation
Easy to replace
An essential component for the proper functioning of CO2 magazines for the Sig Sauer SP2022 airsoft CO2, the retaining cap secures and activates the CO2 cartridge within the magazine.
The CO2 cap for the SP2022 magazine (also known as a clamping screw or CO2 cap) is the part located at the base of the magazine that:
Compatible with SP2022 CO2 magazines (KWC / Cybergun)
Essential part of the CO2 system
Easy to replace in case of wear or loss
Metal construction (plastic version since 2025)
On this type of magazine, the CO2 system operates via a base screw that compresses and pierces the 12g cartridge
“It’s a small but critical part: without it, it’s impossible to pressurize the CO2.
The problem is that these caps are rarely available individually from manufacturers. In 80% of cases, we have to rely on salvaged parts or a complete refill kit.
Tip: Always grease the seal and don’t over-tighten to prevent premature wear.”
Always apply a drop of silicone before installing the valve to prevent leaks
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