.223 Rem | 5.56 NATO

Daniel Defense

Daniel Defense 5.56mm Polymer Magazine, 32-Round Capacity - Black

Heckler & Koch (HK USA)

Heckler & Koch HK MR556A1 30-Round 5.56 NATO Magazine

Daniel Defense

Daniel Defense Magazine Twelve Pack for 5.56 NATO - 32 Round Capacity

Ruger

Ruger AR15 Magazine 30-Round for .223 Remington and 5.56 NATO Rifles