HPA QD Coupling (Foster) Female/Male Thread
QD high quality coupling, fully compatible with EPeS adapters for GBB magazines. The coupling is self-closing, i.e. After disconnecting the HPA system hose, it shuts itself off and does not require the use of an ON/OFF button 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 the LPR (low pressure - secondary) regulator to allow you to disconnect the hose from the controller - the hose then male version with internal thread.
pressure tested up to 300psi (20.7 bar)