THESE HOP UNITS ARE ONLY COMPATIBLE WITH A GENESIS KC-VSR NOZZLE/CYLINDER. THEY DO NOT WORK WITH THE STANDARD PLASTIC KC-02 NOZZLE, NOR OUR METAL KC-GBB NOZZLES.
These hop units are the previous version of the Genesis hop unit, V4 denoted by the red colour.
These hop units have a wider feed ramp than the latest V5 design which makes them more tolerant of use with hpa adaptors such as the old Tanuki V3 mp5 adaptors.
V5 gold hop units have a shallower feed angle which makes them feed smoother than these red hop units, but the V5 occasionally had feed problems with hpa adaptors when the feed lips didn't line up like a normal mag.
This hop unit is not supplied with any hop keys or other parts. It is compatible with all other versions of Genesis components.