The Mossberg 930 "Autoloader" is a gas-operated, semi-automatic shotgun designed for game hunting and for those who indulge in the shooting hobby. The Autoloader can fire 12-gauge, 3-inch and 2 3/4-inch shotgun shells, and can hold up to five rounds at a time. The Mossberg 930 can also be disassembled fairly easily, either for cleaning and maintenance, or for ease-of-transport.
Pull back on the charging handle several times to eject any live rounds that may be chambered or in the shotgun's magazine. Clearing your weapon of live ammunition should always be the first step when working on any type of firearm.
Unscrew the forearm magazine cap located underneath the barrel.
Push the forearm forward and off the shotgun.
Pull back on the charging handle, then pull the barrel straight forward and out of the receiver.
Pull the gas system assembly out of the magazine tube.
Pull the charging handle straight out to remove it from the bolt assembly, then push the entire bolt assembly forward through the barrel hole until it comes out of the receiver.
Tap out the trigger assembly's two retaining pins from the shotgun receiver with your punch. These pins are located immediately behind and above the trigger mechanism.
Pull the trigger assembly straight down and out of the receiver.