The Smith & Wesson M&P340 is a purpose-built concealed carry revolver engineered for professionals and serious everyday carriers. Chambered in .357 Magnum with full .38 Special compatibility, it delivers serious stopping power in a snag-free, double-action-only package. The scandium alloy frame keeps the weight to an absolute minimum without sacrificing durability, and the absence of an internal lock satisfies shooters who demand a mechanically clean trigger system.
Key Specifications
- The revolver is chambered in .357 Magnum / .38 Special for maximum versatility.
- The barrel measures 1.875 inches, optimized for deep concealment and consistent draw clearance.
- Cylinder capacity is 5 rounds on a classic J-Frame platform.
- The action is double action only with a concealed hammer for snag-free presentation.
- Frame construction uses a scandium alloy for an exceptional strength-to-weight ratio.
- The cylinder is crafted from stainless steel to resist corrosion under hard-use conditions.
- Overall weight is just 13.3 ounces, making it one of the lightest .357 Magnum revolvers available.
- The front sight is an XS Sights 24/7 Tritium Night Sight for low-light target acquisition.
- The rear sight is an integral U-notch for fast, intuitive alignment.
- This model ships without an internal lock for a cleaner action and peace of mind.
The M&P340 represents the intersection of S&W’s century-long revolver heritage and modern material science. Whether it rides in an appendix holster, a coat pocket, or a duty backup rig, it delivers the reliability and simplicity that revolvers are trusted for—backed by XS night sights that ensure you can press the trigger with confidence when it matters most. For the shooter who refuses to compromise on carry weight or terminal performance, the M&P340 No Lock is the definitive answer.
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