The Savage Arms 320 Security Thumbhole is a 20-gauge pump-action shotgun with an 18.5-inch barrel, 5+1 capacity, synthetic thumbhole stock, and matte black finish. It weighs 7 lbs. 
 

Key Specifications 

• Model: 320 Security Thumbhole 
• Brand: Savage Arms 
• Gauge: 20 Gauge 
• Action: Pump Action 
• Chamber: 3" 
• Capacity: 5+1 rounds 
• Barrel Length: 18.5" 
• Overall Length: 39.1" 
• Weight: 7 lbs 
• Sights: Front: Bead sight 
• Stock Material: Synthetic Thumbhole 
• Receiver Material: Carbon Steel 
• Safety Feature: Cross-bolt safety 
• Finish Color: Matte Black 
   

Detailed Features 

 
The thumbhole stock provides a distinct grip geometry that can improve stability and control, particularly under stress. The pump action cycles reliably. The 18.5-inch barrel and 39.1-inch overall length keep the package compact for indoor use. The 5+1 capacity is generous for a defensive shotgun. The carbon steel receiver and chrome-lined barrel contribute to durability. Cross-bolt safety is the standard configuration for the 320 platform. 
 

Usage Notes 

 
The 20-gauge format reduces recoil compared to the 12-gauge version, which makes it more accessible for shooters who are sensitive to recoil or for smaller-framed users. The 5+1 capacity and compact dimensions suit home defense applications well. The same platform is also functional for small game and clay shooting.

The Savage Arms 320 Security 20 GA Thumbhole gets consistent marks for affordability and value. Users appreciate the reliability and accessible operation, particularly for home defense and newcomers to pump-action shotguns. The thumbhole stock design is mentioned positively for comfortable grip and improved stability.

The lightweight design and manageable recoil in 20-gauge get favorable comments. The matte black finish draws approval from those who prefer a tactical appearance. Trigger pull is criticized by some as heavier or grittier than higher-end models. Build quality comments are generally positive at the price point, though some feel specific components could be more robust. A minority of users suggest adding a recoil pad for extended shooting sessions.

Overall quality is good, and the ability to use three inch 20 gauge shells suits the ammunition I already had.