The Ruger Security-9® Model 3810 is a full-size 9mm Luger semi-automatic pistol designed to deliver dependable performance, intuitive handling, and outstanding value. Featuring a 4-inch barrel, 15+1-round capacity, Secure Action™ internal hammer-fired system, black oxide alloy-steel slide, and glass-filled nylon grip frame, the Security-9 combines modern defensive features with Ruger's proven reliability.
At the heart of the Security-9 is Ruger's Secure Action™ fire-control system, derived from the proven LCP® platform. The internal hammer provides strong ignition while delivering a smooth trigger pull with a short, crisp reset, giving shooters the feel of a single-action trigger while maintaining the advantages of an internal hammer design.
The pistol features a through-hardened alloy-steel slide and barrel finished in durable black oxide, paired with a high-performance glass-filled nylon grip frame. Internally, a precision-machined hard-coat anodized aluminum chassis with full-length guide rails provides rigidity and long-term durability while keeping overall weight to just 23.8 ounces unloaded.
Model 3810 is chambered in 9mm Luger and ships with two 15-round alloy-steel magazines. The Security-9 is also compatible with Ruger SR-Series® magazines, including available 17-round magazines where legally permitted.
The 4-inch barrel provides an excellent balance between accuracy, recoil control, and maneuverability. Overall length measures 7.24 inches, making the pistol well suited for home defense, recreational shooting, and range use.
For sighting, Ruger equips the 3810 with a fixed front sight and drift-adjustable rear sight. The sights are dovetailed into the slide, allowing them to be replaced with compatible aftermarket options if desired. Front cocking serrations further improve slide manipulation during loading and administrative handling.
Safety features include an integrated trigger safety, external manual thumb safety, hammer catch, and a neutrally balanced sear with significant engagement and strong spring tension, all designed to help prevent unintended discharge. One of the Security-9's standout features is its tool-free takedown that does not require pulling the trigger before disassembly.
With its 15+1 capacity, lightweight polymer frame, internal hammer-fired action, 4-inch barrel, and Ruger's reputation for reliability, the Ruger Security-9 Model 3810 remains an outstanding choice for personal protection, home defense, and everyday range use.
Key Features
- Chambered in 9mm Luger
- 15+1-round capacity
- 4" barrel
- Secure Action™ internal hammer-fired system
- Through-hardened alloy-steel slide
- Black oxide finish
- Precision-machined aluminum chassis
- High-performance glass-filled nylon grip frame
- Integrated trigger safety
- External manual thumb safety
- Hammer catch safety system
- Fixed front sight
- Drift-adjustable rear sight
- Front cocking serrations
- Accessory rail
- Tool-free takedown
- No trigger pull required for disassembly
- Includes two 15-round magazines