This is a Smith & Wesson Model SW9VE, one of the S&W Sigma series pistols. The Sigma was Smith & Wessons first venture into using synthetic materials in gun construction, using high-strength polymer material for the frame. The gun is similar to a Glock safe-action pistol in both its design and operation. This pistol is chambered in 9mm and features a 4-inch barrel, polymer frame, and stainless steel slide.