ProMag Industries Magazine, 223 Remington/556NATO, 65 Round Drum, Fits AR-15, Polymer, Flat Dark Earth DRM-A8-FDE ProMag magazines are designed utilizing both traditional stamping and welding of heat-treated high carbon steel" and modern precision injection molding of mil-spec polymer compounds. Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects. Made in USA