Added an expansion chamber and All American Barrel
Definatly need to change the barrel, the stock barrel sounds like a cannon.
Very durable, never had a problem with it.
Great entry level marker.
The barrel wasn't bad for accuracy but this gun needs a ported barrel to quiet it down. The players I play with know where I was anytime that I fired it. Once I put the all american on it, it was quieter then most other guns out there.