Ares honey badger hop unit

[PAPA 4 ZERO]

Got myself one of the above, but I found while change the rubber, it has no way to add/change the nub itself (some sort of built in nub at the end of the adjustment arm). Any had experience with these or know what what hop unit a could swap it out for? Would a g&g unit work?

[Skara]

At one point I swapped the hop arm with a Madbull Ultimate one I had laying around..

But in all honesty you're better off with a different hop unit.

[Shamal]

I have an Ares hop unit with built in nub. It works as it should. 

A g&g hop will work?

[Hudson]

I've got ZCI hop units from @ak2m4 in my Amoeba; which I'm assuming might be similar.
One was a straight drop in, the other needed just the tiniest bit of filing on the other barrel to fit in (Despite being the same model gun!)