page_title: Smith & Wesson SD
hierarchical_section_title: Smith & Wesson SD
caption_attribution_description: English: A Smith and Wesson Sigma SW9VE 9mm Parabellum handgun, with extra magazine.
context_page_description: The Smith & Wesson SD, formerly known as the Sigma, was Smith & Wesson's first venture into using synthetic materials in pistol construction, using high-strength polymer material for the frame. The pistol is similar to a Glock safe-action pistol in both its design and operation, leading to some controversy and speculation as to the legality of the pistol's patents.
context_section_description: The Smith & Wesson SD, formerly known as the Sigma, was Smith & Wesson's first venture into using synthetic materials in pistol construction, using high-strength polymer material for the frame. The pistol is similar to a Glock safe-action pistol in both its design and operation, leading to some controversy and speculation as to the legality of the pistol's patents.
caption: S&W SW
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