Mossberg 590S Tactical 12-Gauge Shotgun 18.5in

The Ultimate Shotgun for Every Situation

The Mossberg 590S represents a significant evolution in pump-action shotgun design. Its defining feature is the ability to cycle 1.75", 2.75", or 3" shotshells—either individually or in any combination you choose—without requiring adapters or adjustments.

Key Features

• Flexible Shell Compatibility: Load 1.75", 2.75", or 3" shells in any order without tools or modifications
• Reliable Operation: Dual extractors, twin action bars, and positive steel-to-steel lockup ensure dependable cycling
• Smooth Feeding: Anti-jam elevator design prevents malfunctions under demanding conditions
• Optic-Ready: Comes with removable cover plate (Shield RMSc footprint) for easy mounting of red-dot sights
• Ambidextrous Safety: Top-mounted controls work equally well for left and right-handed shooters
• 10+1 Capacity: Magazine tube holds 10 rounds with one in the chamber
• 18.5-Inch Barrel: Ideal for tactical applications, home defense, and close-quarters work

Build Quality

The 590S features a matte blue heavy-walled barrel and drilled-and-tapped black receiver. The fixed black synthetic stock provides a secure grip and withstands harsh conditions. An Accu-Choke Cylinder Bore choke is installed and ready to use. A magazine clean-out tube with cap simplifies maintenance and field cleaning.

Why Choose the 590S?

Whether you're a competitive shooter, home defender, or hunting enthusiast, the 590S delivers the flexibility modern shotgunners demand. The ability to load different shell lengths without adjustment means you can optimize your load for each specific task—from light target loads to full-power buckshot—all in the same magazine.