Year after year, ProMag has increasingly become one of the leading manufacturers of firearms magazines in the world. Gun enthusiasts and law enforcement personnel have agreed, be it for recreational "plinking," competition shooting or law enforcement, ProMag is the source you can count on.

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. This ProMag Drum Magazine is constructed out of DuPont Zytel based polymer and the upper tower has full length steel internal insert stamped and welded like the factory magazine.

Specifications and Features:
50-round drum magazine
Sig Sauer P320 9mm Pistol
Magazine body constructed of heat treated steel with black oxide finish
Injection molded magazine follower
Magazine spring formed from heat treated chrome silicone wire
Polymer
FDE
Made in the USA

Fits:
Sig Sauer P320 9mm Pistol