About the Handgun:
Originally named the GSR (Granite Series Rail) and then later referred to as the Revolution Series, these models are now simply known as the SIG 1911 Series. This is SIG's own version of Browning's classic 1911 platform manufactured in Exeter, New Hampshire. Originally only produced with an integral accessory rail (as the term GSR implied), both standard and rail models are now offered.
About the Manufacturer:
SIG was established in 1853 to make railway rolling stock but has since attained an remarkable record for excellence in the design and manufacture of firearms. The company has specialized in military weapons, primarily for the Swiss army, and since 1945 has been making pistols that rank among the world's finest. In the 1970s a partnership was formed with J.P Sauer & Sohn, allowing SIG designs to be made in Germany. Thus, the SIG Sauer line of handguns began, starting with the SIG Sauer P220 handgun in 1975. In 1985, SIGARMS was created as the American branch of SIG in Tysons Corner, Virginia to import the P220 and P230. In 1987 SIGARMS moved to Herndon, Virginia, and in 1990 moved to Exeter, New Hampshire to accommodate new manufacturing. On October 1, 2007 SIGARMS officially changed their name to SIG Sauer.
About the Cartridge:
The 357 SIG cartridge was developed by SIGARMS in partnership with Federal Cartridge.The cartridge uses a bottlenecked .40 S&W casing crimped to a 9mm bullet. This is why the 357 SIG is not written as '.357', as it is not truly a .357 caliber bullet, but is instead a standard 9mm bullet (.3550 in). The 357 SIG design is an attempt to create a cartridge with stopping power that would approach the larger .357 Magnum revolver round, but in a smaller package that can fit comfortably in the grip of a semi-automatic weapon. Despite the manufacturer's claims, it is not quite as powerful as an actual .357 Magnum, but it exceeds the power of a .40 S&W cartridge.