Smith & Wesson M&P 40 Black 40 S&W Handgun Magazine - 10 Rounds - This magazine is made of steel and has a polymer butt-plate. It is compatible with your M&P 40 and has a 10-round capacity. 10 Round Capacity Steel and Polymer Construction Fits M&P 40
Smith & Wesson M&P 40 Black 40 S&W Handgun Magazine - 10 Rounds - This magazine is made of steel and has a polymer butt-plate. It is compatible with your M&P 40 and has a 10-round capacity. 10 Round Capacity Steel and Polymer Construction Fits M&P 40