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The Smith and Wesson Sigma-9 is one of Smith and Wesson's first forays into polymer pistols. Some would consider the Sigma to be the precursor to the more refined and popular M&P series.
No matter what you think of the Sigma-9 or the M&P we can all agree that extra magazines for your favorite semi-automatic pistol are a wise purchase. These original Smith and Wesson factory Sigma-9 magazines are the very best magazines available for the Sigma-9. Made in the same factory that produced the Sigma-9 you can count on reliable fit, feeding, and function from each magazine.