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
Specifications
| Features | Does not fit FN 5.7 Pistol; 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 |
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