The Smith & Wesson Response Carbine revolutionizes the pistol caliber carbine market with its innovative FLEXMAG System, offering exceptional versatility by allowing users to utilize a wide range of double-stack 9mm pistol magazines from Smith & Wesson and other manufacturers. This system includes interchangeable magazine well adapters, making the carbine compatible with both M&P magazines and Glock G17 and G19 magazines, providing unmatched flexibility in magazine compatibility. Designed with user-friendliness in mind, the Response Carbine features standard MSR-style controls, ensuring an intuitive and smooth shooting experience for both seasoned shooters and those new to carbines. In addition to magazine compatibility, the Response Carbine is highly customizable, accepting a variety of MSR-style accessories such as stocks, trigger groups, grips, and charging handles, allowing users to tailor the firearm to their specific needs. Key features include an optics-ready platform, lightweight polymer construction, a 16.5-inch barrel with a 1:10” twist and 1/2x28 thread, and adjustable length of pull for enhanced user comfort. The handguard offers M-LOK positions at 3, 6, and 9 o’clock, facilitating the attachment of various accessories. With a simple and reliable blowback action, the Smith & Wesson Response Carbine provides a personalized, versatile, and high-performing option for anyone in the market for a pistol caliber carbine.