Smith & Wesson M&P Full-Size 10mm Auto Handgun Magazine - 15 Rounds - The Smith & Wesson M&P 10mm Auto 15 Round Magazines are a standard factory replacement magazines. With durable contruction, the magazine ensures long-term durability for your ammunition. This is a great option for someone at the range who is in need of extra/spare magazines. It also comes in handy for concealed carry. It's always important to have a spare on you. FEATURES: 15 Round Capacity Fits M&P 10mm Auto Steel Spring Weight: 4oz