Smith & Wesson(R) magazine is designed for compatible CSX pistols chambered in 9mm. The detachable magazine provides a 17-round capacity and features a black finish. It provides a factory replacement or additional magazine option for compatible Smith & Wesson CSX pistols.Key Features Designed for compatible Smith & Wesson CSX pistols Designed for 9mm ammunition 17-round capacity Detachable magazine design Black finishSmith & Wesson(R) manufactures firearms magazines components and accessories for sporting recreational defensive and professional applications. The company produces factory accessories engineered for compatibility with supported firearm platforms. Smith & Wesson products emphasize functional design durable construction and consistent manufacturing standards.