I just bought a new Remington Police Magnum 870 today. I just thought I needed one to have. My questions aren't found in the manual or web sight. A side from the steel receiver what are the differences from a standard 870?
Also, nowhere can I find the chamber size, so can it swallow 3.5" magnums?

Thanks

It will not take 3 1/2" mags, just 3".

Differences: Express....
Black powder coat finish.
New type magazine spring retainer system.
Lockable safety.
Sporting type fore end.
Plastic trigger plate.

Police:...
Parkerized finish.
Old style magazine retainer system.
Old style safety.
Police type fore end.
Aluminum trigger plate.
Heavy duty magazine spring.
Heavy duty shell release springs.
Heavy trigger/sear spring.