American Tactical has partnered with German arms manufacturer Schmeisser GmbH to exclusively import and distribute the Schmeisser S60 60 round AR-15 magazine. Made from glass reinforced polymer, this patent pending magazine features a unique follower system that allows for double capacity from a normal AR magazine without being bulky or cumbersome. Designed to shoot both .223 Remington and 5.56x45mm, the Schmeisser S60 will give you an instant capacity upgrade over the standard AR mag at an affordable price for your AR Carbine or Pistol. Features: Now featuring a clear polymer window and a last round bolt hold open integrated in the follower (Upgrade from Gen 1) Made in Germany