I'm also looking to get a shotshell carrier (4-6 shells or more I guess)....looking for opinions.
I know that you can get shotshell carriers for forends (aimpro tri-rail forend) like here ->
http://3gungear.corecommerce.com/Shotgungear/Forend-Carrier-c26/
Or just get a side mount for the receiver (mesa, tacstar, etc).
However, I am worried about drilling into the receiver ( I don't like "undoable" modifications like drilling into the aluminum). Especially since I heard that doing so can adversely affect the reliability of an autoloader?
Any suggestions or thoughts? I did look through the 930 autoloader forum, and didn't see a dedicated topic for shotshell carriers.