Just curious if there is a trick to getting them off.  I wanted to fit a set of Peltor 100's on them to replace the old beatup TAC6's I have on there right now, and realized the black slider is different.  

On the Peltors, they can literally pop off the headband with a little pressure.  Just tried to do the same with the TW adapters to see if I could swap the sliders, and they apparently don't just pull off.

Any trick to removing them?

Thanks!

Try rotating 90* and then pulling,
Or just pull REALLY hard, worst case scenario is they break lol.