Now featuring a clear polymer window and a last round bolt hold open integrated in the follower. 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 REM & 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. Made in Germany Disclaimer: The Schm Mfg: Ati