Now, this one's a great custom job from Airsoft Extreme, and it's not based on the ACM shotgun that's being stockpiled at retailers... "The Marushin M500SSB is a powerful full metal gas powered 8mm shotgun. It weighs about the same as the real one and the pump racks with that satisfying shotgun pump sound. We have modified a real Surefire M500 shotgun light foreend ($250) to fit the airsoft gun and have changed the stock stamped metal pump arms to stronger machined steel ones.
