The Savage Arms 320 Security Thumbhole is a pump-action shotgun chambered in 20 gauge, built for home defense and range use. At 7.1 lbs with an 18.5-inch barrel, it's light enough for most shooters to handle comfortably for extended sessions. 
 

Key Specifications 

• Model: 320 Security Thumbhole 
• Gauge: 20 GA 
• Action: Pump Action 
• Capacity: 5+1 rounds 
• Barrel Length: 18.5 inches 
• Weight: 7.1 lbs. 
• Finish: Matte Black 
   

Detailed Features 

 
The pump action cycles cleanly and offers reliable operation across standard 20-gauge loads. Ghost ring sights give a wider sight picture than bead-only setups, which aids quick target acquisition, useful in defensive scenarios where you may not have time to align fine sights. The thumbhole stock gives a more enclosed grip than a traditional stock, which many shooters find helps control during rapid fire or with lighter-framed hands. 
 
The chrome-lined barrel resists fouling buildup and simplifies cleaning after a range session. 
 

Usage Scenarios 

• Home Defense: The 18.5-inch barrel maneuvers through doorways and hallways. The 20-gauge chambering is effective at typical defensive distances with manageable recoil compared to 12 gauge. 
• Competitive Shooting & Training: Ghost ring sights and responsive pump action work well for precision-demanding drills or informal competition.

Owner feedback on the Savage 320 Security Thumbhole in 20GA is generally positive. The thumbhole stock design is a recurring highlight. Most shooters find it gives better grip control and reduces fatigue during longer sessions compared to a traditional stock.

Pump action reliability and smooth cycling come up favorably across user reports. The ghost ring sights are specifically mentioned as an improvement over basic bead sights, particularly by home defense-focused buyers.

The 20-gauge chambering gets consistent praise for balancing stopping power with lower recoil, making the shotgun accessible to a wider range of shooter sizes and experience levels. Value for the price is a common theme, with most buyers finding it competitive against similar models.

Minor criticisms mention that the build feels lighter or less substantial than higher-end shotguns, and some competition-focused shooters note the limitations compared to purpose-built competition guns. On balance, it reads as a solid budget-to-mid-range defensive and recreational shotgun.