Remove orange tip, install new spring

[Costane]

Hi, I just got a JG MOD5, I need to remove the orange tip that covers up the threading, but I am worried about damaging the gun or the threading, how would you suggest removing it safely?

I also need to install an M90 spring in this, how can I do this without risking damage to the gun?

[Jimski]

saw it with along the length with a dremel circular saw and then tear it off

[K3vX]

Check is there is any pin or screw that holds the orange tip in place.
Remove as needed.

Then

Try to unscrew it using pliers and a heating source. Preferably a heat gun.
Boiling water can work but you need to be careful.

Or

Saw a opening (as stated before) with a Dremel, a small saw or a good knife.
Ce careful not to slip and not scratch the gun or hurt you.

[Costane]

Okay, thanks

[Styrak]

As for the spring install: If you don't know what you're doing, get someone who does to do it.