HPA adaptor (typ PBS) KWA/KSC thread

The adapter is used to connect the HPA system to your GBB airsoft weapon. You replace the reservoir valve and replace it with the HPA quick coupling – a gt; the PBS compatible QD coupling we have on offer.
Made of high quality stainless steel.
CAUTION! This is a stack adapter for use with PBS QD couplings that are not self-closing.
Threaded versions for KWA / KSC trays.