Promag Fn 5.7x28mm Ar 55rd Drum 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 manufacturers defects. Made in USAFeatures : 55-round drum magazine Fits the FN 5.7X28MM AR style carbine Magazine body constructed of a proprietary DuPont Zytel based polymer Blue steel upper magazine tower Injection molded magazine follower Magazine spring formed from heat treated stainless steel Made in USA