The Mossberg 590S Tactical is a pump-action 12-gauge with a 20-inch barrel, ghost ring sights, fixed pistol grip synthetic stock, and a tube magazine capacity of 13+1 rounds (7+1 and 8+1 configurations are also available depending on shell length). At 7.25 lbs and 41 inches overall, it's a full-size tactical shotgun. 
 

Key Specifications 

• Brand: Mossberg 
• Model: 590S Tactical 
• Caliber: 12 Gauge 
• Action: Pump Action 
• Capacity: 13+1 RD (7+1 / 8+1 options available) 
• Barrel Length: 20 inches 
• Overall Length: 41 inches 
• Weight: 7.25 lbs 
• Chamber Size: 3 inches 
• Sights: Ghost Ring 
• Stock Material: Synthetic with Fixed Pistol Grip 
• Receiver Material/Finish: Steel with Black Anodized Finish 
   

Detailed Features 

 
The ghost ring sights give faster target acquisition than a standard bead, which matters in defensive use at realistic distances. The fixed pistol grip stock provides positive control of the gun during firing and reduces felt recoil compared to a straight stock in this configuration. The steel receiver with black anodized finish handles rough handling well. 
 
The 590S designation allows the gun to accept mini shells (1.75-inch) alongside standard 2.75-inch and 3-inch loads -- the tube magazine capacity varies accordingly, which is the source of the 13+1/7+1/8+1 figure range. 
 

Target Audience 

 
Home defense users who want high tube capacity and ghost ring sights in a Mossberg platform, and tactical training shooters who work with a mix of shell lengths. The pistol grip stock is preferred by some defensive-use buyers but is an acquired taste for others. 
 

Usage Scenarios 

• Home Defense: The 13+1 capacity with mini shells, or 7+1/8+1 with standard loads, provides substantial capacity for defensive use. 
• Tactical Training: The ghost ring sights and pistol grip configuration suit training programs that use these features. 
• Competitive Shooting: Works in shooting sports formats that allow pump-action 12-gauges.

The Mossberg 590S Tactical draws consistently positive feedback for home defense use, with the usual practical considerations around size and weight.

Capacity is the most praised attribute -- 13+1 with mini shells is a significant number for a pump-action, and owners generally see that as a meaningful advantage. The 590 platform's reliability is cited frequently, with buyers noting it cycles consistently across different load types including the mini shells the 590S is specifically designed to handle. Ghost ring sights get positive marks over a standard bead for defensive-use readiness. Build quality is strong throughout.

Criticism focuses on practical handling factors. At 7.25 lbs and 41 inches, it's on the heavier and longer end for a home defense shotgun, which comes up in comparisons to shorter or lighter alternatives. Maneuverability in tight spaces is a concern some buyers raise, particularly compared to handguns or AR-format carbines. The pistol grip stock configuration is a preference split -- some find it provides better control, others find a traditional stock more comfortable for extended shooting.

Overall the 590S Tactical is well-regarded in its category, with buyers who want high capacity and reliability in the 590 platform generally satisfied with it.