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.