If you are using the Smith & Wesson M&P 9 M2.0 CO2 powered airsoft platform, you need some extra magazines to complete your kit! This is the correct 13 round replacement magazine for your S&W M&P9 M2.0 CO2 (SKU 2275912). Whether you are training or playing airsoft you will need spare magazines to maximize your experience with this platform This magazine mirrors the features and capabilities of the factory magazine included with the S&W M&P 9 M2.0 6mm CO2 airsoft pistol.