FC,
I've been researching same for months toward a pump gun in specific and am this close to pulling the trigger.
In fact last night I hit the ATF website to order requisite forms toward securing Class 3 approval against ordering/purchasing a 14" barrel 590A1 Compact.
https://www.policeguns.com/catalog/i...page=1&sort=4d
I like Mossberg (over Remington) largely because of it's tang mounted safety.
If you run a search here there have been multiple threads referencing the 590A1 by owners. I did so and read them all.
- Janq