From a similar question on another forum:
Mossberg got very mixed reviews on the 9200.
Some people loved them, others had reliability problems.
Mossberg seems to have a real problem when it comes to semi-auto shotguns.
The don't build their own semi-autos, preferring to buy imported guns, and sell them under their name.
They introduce a gun, list it for a year or so, discontinue it, introduce a new gun, only to dump it in a year or so.
Just since the early 1980's Mossberg has sold the following semi-auto shotguns:
712
The New Haven.
The Howa-made Model 1000, which along with the Model 3000 pump they took over from S&W after they dropped them.
5500
6000
9200
930
935.
It appears that the longest period of time Mossberg has ever sold a model of semi-auto shotgun has been less than 3 years.
That does not inspire confidence.