Amend2 Magazine, 223 Remington/556NATO, 10 Rounds, Fits AR Rifles, Flat Dark Earth AM13556MOD2FDE10 The Amend2 10-round magazine is a sturdy" reliable AR15/M4/M16 magazine made of advanced polymer material. It is light" durable and an excellent alternative to the standard M4/M16 USGI aluminum magazines. The 10 round body profile is ideal for hunting" bench shooting or the various states where capacities are limited by law.