The Sigma is Smith & Wesson's venture into using synthetic materials in gun construction, using high-strength polymer material for the frame.
Created in 1994, it also incorporates a self-cocking or double-action only firing mechanism, so that the pistol can be fired without delay or preparation. The basic model is chambered for the .40 S&W cartridge, but it is also available in 9 x 19mm Parabellum and a sub-compact model in .380 ACP was also manufactured. A limited amount of these guns were also chambered for the .357sig cartridge.
The Sigma series pistols are so similar to the competing Glock pistols that Glock sued Smith & Wesson for patent infringement. The case was settled out of court in 1997, with S&W agreeing to make alterations to the Sigma design and pay an undisclosed amount to Glock.
In 1999 S&W improved the Sigma series with the main changes being shortening of the barrel and the slide by .5 inch (12.7 mm). Other improvements included a more ergonomic and comfortable grip and a slightly enlarged ejection port, due to the proprietary accessory rails located at the front (an inexpensive adapter can be attached to turn it into a standard picatinny mount).
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Gun holster with Mag Pouch For SW Sigma 9ve40ve | US $19.95 |
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Desantis Stealth Inside Nylon Holster AMT Backup 45SW Sigma 380Keltec P11Kahr | US $24.95 |
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Sigma 40 Belt Loop Pistol Holster magpouch | US $27.95 |
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Gunman Hip Holster Fits Smith Wesson mp Sigma 409mm | US $19.95 |
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Sigma 357 SIG Belt Loop Pistol Holster magpouch | US $27.95 |
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Fobus Paddle RH Holster Glock 29 30 30SF SW99 Sigma | US $20.99 |
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Blackhawk 410525BKL CQC SERPA Holster Black SW MP Sigma 9 40 LH BH410525BK L | US $43.93 |
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DeSantis RH Natural Sof Tuck Holster for Sigma and SW | US $20.49 |
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Roto 2 Magazine Fobus Holster Sig Sauer 9mm SW 5906 Sigma 99 Smith Wesson 9 | US $29.59 |
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SW SIGMA SW40VE BELT CLIP GUN HOLSTER MAGPOUCH 4 IN j | US $29.95 |
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SW SIGMA COMPACT SW9C BELT LOOP GUN HOLSTER j | US $24.95 |
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SW SIGMA SW9F BELT LOOP GUN HOLSTER MAGPOUCH j | US $29.95 |
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SW SIGMA SW40F BELT LOOP GUN HOLSTER j | US $24.95 |
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SW SIGMA SW9F BELT CLIP GUN HOLSTER MAGPOUCH 45 BBL jN | US $29.95 |
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SW SIGMA SW40VE BELT LOOP GUN HOLSTER j | US $24.95 |
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SW SIGMA COMPACT 40 BELT CLIP GUN HOLSTER MAGPOUCH 4IN j | US $29.95 |
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SW SIGMA COMPACT 9 BELT CLIP GUN HOLSTER MAGPOUCH 4 IN j | US $29.95 |
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SW SIGMA SW9VE BELT CLIP GUN HOLSTER MAGPOUCH 4 IN j | US $29.95 |
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PANCAKE HOLSTER 4 SW sigma v ve e 9 40 45 9ve 40ve 9v | US $17.95 |
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SOB SOB HOLSTER 3 way 4 SW MP 9 40 45 SIGMA 380 CS9 | US $33.99 |
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Side Gun Holster for Smith Wesson mp Sigma 9mm 40V | US $21.95 |
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Galco Miami Classic Shoulder Holster Right Hand Black 39 SW MP Sigma MC472B | US $159.39 |
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ITP CCW IWB Inside Pants Holster 4 SW SIGMA 9E 9V 9VE | US $17.95 |
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ITP IWB Inside Pants Holster 4 SW SIGMA 40V 40VE 40E | US $17.95 |
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ITP IWB IN Inside Pants Holster 4 SW SIGMA 9 40 V VE E | US $17.95 |