Softair brand Colt M4 AEG Rifle

[SAS1988]

Hi - I've got a Softair brand Colt M4 AEG.

My eventual goal is to buy a suppressor style BB tracer, however my US law requisite orange tip appears to be cemented to the metal barrel with a rivet and glue - and I don't know how to remove the rivet. 

Thus - can you advise which airsoft barrel I can buy to upgrade my device? 

Cheers and thank you. 

 

[Immortal]

Go on Evike.com and type in m4 barrel... they're based on your side of the pond.