Amend2 Magazine, 223 Remington/556NATO, 30 Rounds, Fits AR-15 Rifles, Polymer, Black with Red, White, and Blue Amend2 Logo, 3 Pack AM3PACK556BLK30 The Amend2 30-round magazine is a sturdy" reliable 5.56x45 NATO (.223 Remington) AR15/M4/M16 magazine made of an advanced polymer material. It is a light" durable" and excellent alternative to the standard M4/M16 USGI aluminum magazine. This 3-pack features one each of magazines with red" white" and blue followers.