The Ruger Security-9 is a semi-automatic DA hammer-fired pistol in 9mm Luger with a 4-inch barrel and polymer frame. It holds 10+1 rounds and weighs 23.8 oz. The slide is steel with Black Oxide finish. Sights are drift-adjustable high-visibility. 
 

Key Specifications 

• Brand: Ruger 
• Model Name: Security-9 
• Caliber: 9mm Luger 
• Action Type: Semi-Auto (Double Action) 
• Capacity: 10+1 rounds 
• Barrel Length: 4 inches 
• Overall Length: 7.24 inches 
• Weight: 23.8 oz (approximately 1.49 lbs) 
• Frame Material: Polymer, Black 
• Slide Material/Finish: Steel, Black Oxide 
• Sights: Drift Adjustable, High Visibility 
   

Features 

 
At 7.24 inches overall with a 4-inch barrel, the Security-9 is sized between a compact and full-size pistol. The Secure Action hammer-fired design produces a consistent trigger pull without requiring a manual decock procedure. Drift-adjustable sights can be windage-corrected without special tools. Manual thumb safety and trigger safety both engage before firing. The polymer frame keeps weight at 23.8 oz, comfortable for extended carry without the bulk of all-metal full-size pistols. 
 

Usage 

 
The Security-9 is positioned as a home defense and carry pistol. The 4-inch barrel gives it more velocity and sight radius than a compact. The manual safety is a feature that some carriers want and others prefer to avoid. It's present here. New shooters find the consistent trigger pull easier to learn on than DA/SA platforms.

The Ruger Security-9 Compact in 9mm gets broadly positive feedback as a carry and home defense pistol.

Most owners appreciate the lightweight polymer frame combined with the all-day carry weight. The grip receives consistent praise for being comfortable and well-proportioned.

Accuracy and recoil control are cited positively. Most users report solid practical accuracy and a manageable recoil impulse that works for both new and experienced shooters.

The manual safeties are noted as a specific draw for shooters who want that physical check in a carry gun, particularly new shooters.

Trigger feel gets some criticism. Some owners find the pull weight or reset could be refined. This is a recurring but not universal complaint.

Magazine capacity draws occasional mentions compared to similarly-priced competitors that may offer 15+ rounds in a similar footprint.

Overall the Security-9 is consistently recommended as a solid, accessible carry and defense pistol that punches above its price point.