Anybody ever used one of these? I am thinking about getting a 20ga. for my son. I understand that Beretta has long stopped making these and WW's supply is slowly drying up. A friend of mine said that he shot a 12ga and that they had a stout recoil for a gas gun. I would appreciate comments on recoil, reliability, and suceptibility of the gas system to getting gunked up. How is the 391 different?

Thanks