Built from durable, lightweight aluminum with high tensile steel springs and a corrosion-resistant black finish, the Smith & Wesson® M&P®10 .308 / 7.62x51 5-Round Magazine is a genuine S&W rifle magazine, designed to meet or exceed NATO requirements for durability and reliability. The high-tensile steel spring and polymer follower ensure optimal feeding performance, while a welded steel floor plate offers enhanced crush and crack resistance in virtually any tactical or target shooting environment. Smith & Wesson’s AR magazines are All-American and built to last. Capitalizing on over 165 years of heritage, S&W factory magazines deliver flawless performance in a wide variety of AR platforms. Grab a few spare magazines today and start getting more trigger time at the range. Order now!