Mossberg 500 is a series of pump action shotguns manufactured by O.F. Mossberg & Sons. The series consists of a number of variants, many of which have appeared in the Resident Evil franchise.
The Mossberg 590 is a special purpose model intended for police and military use. Its short barrel is a distinctive feature. The 590 appears in the 2002 remake.
Mossberg 590 Cruiser
The Mossberg 590 Cruiser is a 12-gauge model which holds 12 shells. It appeared in both Resident Evil: Apocalypse and Resident Evil: Extinction. Janus "Alice" Prospero uses one with a standard forearm as opposed to the vertical foregrip.