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.
50-round drum magazine
Fits the Sig Sauer P320 9mm pistol
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
Magazine upper tower has full length steel internal insert stamped and welded like the factory magazine
Made in USA
Manufacturer Part #
Sig Sauer P320
A leader is the man who has the ability to get other people to do what they don't want to do, and like it.
- Harry S. Truman
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