Mossberg 590S 12 Gauge 18.5in Pump Optic Ready

The Mossberg 590S is a purpose-built 12 Gauge pump-action shotgun configured for security, duty, and responsible home defense use. It pairs an 18.5-inch barrel with an optic-ready receiver and a fixed black synthetic field-style stock for consistent handling. The design cycles 1.75", 2.75" or 3" shotshells interchangeably to support a range of loads without an adapter.

Key Specifications

• The gauge is 12 Gauge.
• The action is Pump-Action.
• The barrel measures 18.5 inches.
• The magazine and chamber hold 9+1 rounds.
• The chamber accepts up to 3-inch shotshells.
• The receiver is optic-ready and ships with a cover plate installed.
• The metal finish is matte blued steel.
• The stock is a fixed black synthetic field-style stock with recoil pad.
• Sights include a bead front and the optic-ready cut for micro-dot mounting.
• The unloaded weight is approximately 6.75 lbs.

Reliable and straightforward, the 590S gives informed users a robust platform that balances cycling flexibility, optic compatibility, and proven pump-action durability. Its configuration supports practical defensive and duty roles while remaining simple to operate and maintain.