The Ruger Security-9 is a compact semi-automatic handgun chambered in 9mm Luger. This comes in a Cobalt Kinetic Slate Blue finish with a blued slide — a more distinctive look than the standard black, without any change to how the gun functions. 
 

Key Specifications 

• Manufacturer: Ruger 
• Model: Security-9 
• Caliber: 9mm Luger 
• Barrel Length: 4 inches 
• Capacity: 15 rounds 
• Weight: 23.8 ounces (approximately 1.49 lbs) 
• Finish Color: Cobalt Kinetic Slate Blue with blued slide 
• Action Type: Semi-Automatic, Double Action Only 
• Material: Polymer frame with cold hammer-forged steel barrel 
   

Features 

The checkered grip gives a firm hold across different conditions. Manual trigger safety and integrated safety mechanisms are both present. The drift-adjustable 3-dot sights work well for most shooters and are simple to adjust for windage. Standard capacity is 15 rounds plus one in the chamber. 
 

Usage 

The compact dimensions make it a natural fit for concealed carry. The 9mm caliber keeps recoil manageable, and the cold hammer-forged barrel contributes to consistent accuracy at range. It also works as a home defense option for anyone who wants a single gun that covers both roles.

Owners of the Security-9 in Cobalt Blue generally have positive things to say, with a few consistent points of criticism.

The ergonomics come up frequently — the grip feels comfortable to most shooters and the size works well for concealed carry. The cobalt finish draws comments too; it is a noticeable departure from standard black and many users specifically like having something different.

Performance-wise, the gun has a reputation for reliable feeding and manageable recoil. Affordability is a recurring theme: most owners consider it good value, especially compared to other compact 9mm options.

On the critical side, the trigger gets mixed reviews. It functions fine, but some shooters find the reset longer than they would prefer for fast follow-up shots. Magazine capacity occasionally comes up in comparison to other compacts that hold more rounds in a similar footprint. A few owners also mention wanting more aftermarket customization options, though basic accessories are widely available.