OK guys, lets get back to the real problem; that is the NYPD decided to pull 75 590A1s off the street because they had a preceived malfunction in one or more weapons on the range.
Here is how this kind of thing works: Range guy observes or finds a malfunction, and does not know what has happened. He notifies his supervisor, who then notifies bosses up the chain of command.
PDs tend to be paranoid about weapons they issue, if a cop gets hurt or killed because a department issued weapon malfunctions, all sorts of bad things start to happen, and those bad things tend to start at the top of the command food chain and go downhill. Eventually, as in the military there HAS to be someone responsible. So no one wants to be the guy who says "this is just one malfunction, let the other guns stay in the field". Not only does no one want to be the guy who let a malfunctioning weapon let someone get hurt or dead, but it is also a career stopper, and possibly a pension killer. This had nothing to do with Mossbergs being good or bad, it had to do with how police departments function.
This whole kerfuffle has more to do with bureaucrats than guns.
This time the situation was probably viewed a particularly acute because Mossberg was a recent addition to the arsenal at NYPD. Add to that the fact that no one probably knew the exact reason for the malfunction, and bingo, an overreaction-or maybe not.
The Chicago PD had a real problem with Winchester 1200s, they replaced Winchester 97s and 12s which were high quality guns, albeit old and hard to get parts for. The 1200 turned out to be a disaster of a shotgun for police use.
In NYPD the Highway unit frequently finds itself cut off by expressway traffic from real rapid assistance in an emergency, which is why they got new shotguns in the first place. The someone freaks out thinking "what if" and they recall the guns till they know what the problem is. Not necessarily a bad idea under the circumstances.
Remember this had nothing to do with the quality of Mossbergs, the fact that they had them in the first place indicates that they had come through a testing process with a good reputation. They replaced Ithaca 37s which everyone agrees was a really good gun, just had a bad feature-the slam fire, which can cause ADs with guys who are not really skilled or are just tired after a long shift.
I never felt underarmed with a Mossberg, particularly a 590A1, and this whole thing simply has nothing whatsoever to do with the gun.