Black Rain Ordnance AR-15 .223 Remington/5.56x45mm NATO 30 Round Rifle Magazine US Marine Corps Seal 1 Pack. 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 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine: Manufacturer: Black Rain Ordnance Magazine Capacity: 30 Round Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Quantity: 1 Features of Black Rain Ordnance AR15 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine Sturdy Reliable 5.56 45 NATO (.223 Remington) AR15/M4/M16 Magazine Advance Polymer Material Light Durable Excellent Alternative to the Standard M4/M16 USGI Aluminum Magazine Package Contents: Black Rain Ordnance AR15 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine What firearm models does the manufacturer say Black Rain Ordnance AR15 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine is compatible with? The manufacturer says that Black Rain Ordnance AR15 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine is compatible with AR-15Black Rain Ordnance BRO-MAG30-USMCSEAL: AR15 5.56 NATO/.223 Rem 30 Rounds Rifle Magazine US Marine Corps Seal 30