XS/QB78 all you need for this model is listed here the Parts Diagram==Spare Parts== Custom Parts
The QB78. & QB79. Parts Diagram with all parts listed we only stock Genuine Spares Parts..
This section has custom parts made by GMAC in Brass Aluminium and Black Steel all to fit the XS78 QB78
This Section Lists HPA and CO2 fitting made by GMAC and other manufacturers parts that can be used to convert your gun to bulk fill