Description
The 590S is Mossberg’s answer to a specific practical problem: a pump shotgun that handles mixed shell lengths without modification or adapters. Where a standard 590 requires you to commit to one shell length, the 590S cycles 1.75-inch mini shells, 2.75-inch standard loads, and 3-inch magnum shells interchangeably and in any combination within the same magazine. That flexibility matters for home defense, where you might stage lighter loads for reduced overpenetration and heavier ones for other contingencies, and for anyone who wants to run reduced-recoil mini shells without retrofitting the action.
The 9-round capacity reflects the full magazine potential when running mini shells, which are short enough to stack more rounds in the same tube. With standard 2.75-inch loads the count will be lower, as it is on any tube-fed shotgun. The receiver is drilled and tapped, so mounting a red dot or low-power optic requires no gunsmithing beyond attaching a compatible rail. The ambidextrous tang safety sits at the top rear of the receiver where the thumb reaches it naturally from a firing grip, and it works the same from either shoulder without repositioning the hand. The front bead gives a fast, uncluttered sight picture suited to the close-range work this shotgun is built for.
The synthetic stock is adjustable for length of pull, which makes the 590S practical across a wide range of shooter sizes and useful as a shared firearm in a household. The matte blued steel barrel resists casual handling and does not need the care of a polished finish. Dual extractors and twin action bars are standard 590-series construction details that contribute to reliable cycling under the dirt and fouling conditions where a defensive shotgun actually gets used.
Shipping and availability: This item must ship to a licensed FFL dealer for transfer.




