KA GBBR loading nozzle issue

[troyercm]

So my boss has a King Arms M4 GBB rifle and the left side of the loading nozzle keeps wearing down on it to the point where it won't load a BB on the left side. He's replaced it with another stock loading nozzle and its already showing the same wear after going through a few mags. There's a lot of tolerance in the loading nozzle and it shifts to the right when pushing a BB thus causing the wear. Is this a common problem and does anyone know of a fix, loading nozzle or a complete BCG that can be bought to fix this problem?

[Dominum]

GBBRs are not very common in SC, but I think 2nd Ranger has had a few and he usually does a good bit of research before he buys, so he may be able to help.