Hi, I got a marui sig 552. All is good except I can't pull the bolt back to access the hopup. It seems very firm in place. Is there some latch/button you have to pull to open it? I hope it isn't glued shut... Haven't opened the gun either (looks like a nightmare to open a sig) but if all else fails i'll just bring it to a tech on here.
Any help would be appreciated.
