Give yourself an unfair advantage with the gift of superior firepower using the ProMag® Springfield® M1A® .308 Win 50-Round Drum Magazine. This reliable aftermarket drum magazine features a durable DuPont™ Zytel® polymer drum housing for lasting performance and durability, while an over-molded steel magazine catch and feed lips ensure a factory-like fit for optimal performance. Plus, a heat-treated stainless steel wire spring eliminates binding, ensuring the injection-molded polymer follower operates flawlessly for reliable feeding. To top it off, this ProMag magazine is backed by a reliable lifetime warranty for lasting field service and superior quality you can truly depend on when it matters most. Made in USA.