Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine Black GO-AR15-20-BLK-20RD. Specifications for Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine: Manufacturer: Global Ordnance Fabric/Material: Steel Magazine Capacity: 20 Round Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Quantity: 1 Features of Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine Steel Construction Great For Long Term Storage Fully Ribbed Package Contents: Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine What firearm models does the manufacturer say Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine is compatible with? The manufacturer suggests that Global Ordnance AR15 5.56/.223 20 Round Rifle Magazine is compatible with AR-15Global Ordnance GO-AR15-20-BLK-20RD: AR15 5.56/.223 20 Round Rifle Magazine Black