Metal select fire switch for JM SCAR V2?

I can just tell that the fire select switch on my SCAR V2 is going to snap, I already have a metal trigger & will be getting a metal mag release but was wondering what metal fire select switch is appropriate ?

To be clear i mean the actual external plastic switch knob, not the internal switch mech.

Ok apparently SHS metal fire selection switch is what I need but I cannot seem to track one down that is in stock.

Can anyone suggest where I can get one ?