Black Rain Ordnance AR15 30 Rounds Rifle Magazine Black 30. 5645 NATO (.223 Remington) AR15/M4/M16 magazine made of advance polymer material. It is a light durable and excellent alternative to the standard M4/M16 USGI aluminum magazine. Specifications for Black Rain Ordnance AR15 30 Rounds Rifle Magazine: Manufacturer: Black Rain Ordnance Color: Black Fabric/Material: Polymer Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO .223 Remington Gun Make: AR Platform Gun Model: AR-15 Package Contents: Black Rain Ordnance AR15 30 Rounds Rifle Magazine What firearm models does the manufacturer say Black Rain Ordnance AR15 30 Rounds Rifle Magazine is compatible with? The manufacturer suggests that Black Rain Ordnance AR15 30 Rounds Rifle Magazine is compatible with AR-15Black Rain Ordnance 1703824: AR15 30 Rounds Rifle Magazine Black 30