QD high quality coupling, fully compatible with EPeS adapters for GBB magazines. The coupling is self-closing, ie. After shutting off the HPA system hose, it closes itself from the cartridge and does not need to use an ON / OFF switch or a slide check.
This is a female version with an external 1/8 NPT thread (conical thread commonly used in paintball or airsoft HPA systems) - designed for LPR (low pressure - secondary) regulator to allow you to disconnect the hose from the controller - the hose then Male version with internal thread.
