[CarolineJ]

Well done, Cox-Agri - same day reply sending me a PDF of all the parts and asking me to identify which ones I needed.  However, they can only be bought as part of the major service kit for that gun, which I can only order through my local agri store.  Given I'm still waiting on something they ordered for me on 20th August, I think I may be going down the replacement route!

[bazzais]

Ive tried buying descent ones that you can buy parts for - but I find the best route is to just buy cheap ones that when get wrecked - dont matter