This magazine is constructed of steel with a polymer butt-plate and red follower. It is compatible with your S&W M&P Shield M2.. This model has a 8-round capacity. Specifications and Features: Caliber: 9mm Luger Capacity: 8 Finish: Black Model: M&P Shield M2.0 Material: Steel Type: Detachable Model Fit: M&P Shield M2.0 Brand Fit: S&W Capacity: 8