Close-up of a brass and black metal mechanical valve.

ChatGPT You said: I can't think of the name of a device. It's a module that can release all the gas from a CO2 cartridge (paintballer size). The module itself is small and the bulk of it is the cart itself. ChatGPT said: It sounds like you're trying to recall the name of a CO2 cartridge dump valve or quick dump valve. These small modules are designed to rapidly release all the gas from a standard CO2 cartridge (like those used in paintball, airsoft, or soda machines). They're often used in testing, propulsion setups, or DIY projects where you need an instant full release of gas pressure. The module is usually compact, with the cartridge forming the majority of the size and volume. Here are a few names that such a device might go by: Dump valve Quick release valve CO2 cartridge actuator CO2 cartridge expulsion valve CO2 burst valve If you're thinking of a hobbyist or maker use-case (like launching something, rapid inflation, etc.), some people also just call them: CO2 cartridge launcher CO2 actuator module CO2 burst tool Do any of those sound like what you're thinking of? Or do you remember the context it was used in (e.g., for rockets, traps, prop building)? You said: The actuators look close to it but not it ChatGPT said: Thanks — that helps narrow it down. If actuators are close but not quite it, and the key idea is releasing all the gas from a CO2 cartridge quickly, with the device being very compact, you're probably thinking of something like one of these: 1. CO2 See more