Smith & Wesson is reinventing micro-metal pistols. The new hammer fired all metal micro-compact pistol chambered in 9MM has a 3.1" barrel, is .95'' wide, has a flat face trigger with integrated safety, metal white dot sights, glare reducing slide serrations, ambidextrous manual thumb safety, enhanced grip texture with two interchangeable backstraps and has a 10 Round and 12 Round magazine capacity. Aluminum alloy frame Glare reducing slide serrations Interchangeable, textured backstraps including small and extra small sizes for better concealability Textured front strap Ambidextrous manual thumb safety Ambidextrous, elongated slide stop Two magazine release buttons included for left and right hand shooters Chamfered ejection port to help ensure no snags when drawing from holster Slide includes EZ-tab integration for simpler racking Optimal 18-degree grip angle for natural point of aim Flat faced trigger with integrated safety for a consistent finger placement Single action for a light, crisp trigger pull for accurate shot placement 1 in 10'' twist rate Armornite durable corrosion resistant finishCaliber: 9mm Luger Capacity: 12+1 and 10+1 Barrel Length: 3.1'' Action: Single Grip: Interchangeable Backstraps Barrel Material: Stainless Steel - Armornite Finish Slide Material: Stainless Steel - Armornite Finish Frame Material: Aluminum Alloy