hi i recently bought a brocock contour rifle, this is my first pcp gun. i also bought a hatsan stirrup pump, which i believe to be the same as a webley tri pump. I charged my gun up for the first time today with my pump since the shop filled it with their bottle when i bought the gun. After i charged the gun i noticed an o ring at the bottom of the cylinder which i hadn't noticed previously, is this o ring ment to be at the bottom or has it came from inside the pump? any help greatly apprciated before i take the pump back to the shop.
