ICS MP5 A5 flashider/barrel tip
 

Hi there fellow airsofters,

Got a question. My mp5 a5 flashider/barrel tip fell off, how to fix?
It's a Ics mp5a5 full metal. I've tried removing everything possible linked,
but no luck, that tiny little pin located under will not budge or come off.
But seems like it has nothing to do with tightening the tip.

So what to do? It's fustrating. Pls help thanks