do it yourself, changing a hop rubber is probably the simplest 'tech' job you can do on a gun.
Airsoft Forums UK
jcheeseright
Airsoft_Mr B
You just need to get the barrel out and basically AFAIK it's as simple as pulling the rubber off and then sliding on a new one. Just don't twist it or it could rip.
Esoterick
Watched Eagle6's guide for the M4 SOPMOD so hoping it's similar to that. Might change the nub and barrel whilst i'm at it, providing that isn't a waste of time.
Esoterick
Reason I'm doing this at all is my shots list to the right. Not sure if it was me cleaning the barrel or it's always been like that.
