About the Handgun:
The modern Sig Sauer pistol story began with the P220. Initially offered in several centerfire calibers in 1976, all but the .45 ACP chambering were eventually dropped. The .45 ACP P220 went on to become recognized as one of 'the most accurate 45s right out of the box.' Since that time the P220 has earned an enviable record in hot spots around the world. Today the P220 features a stainless steel slide machined from bar stock and coated with a durable, wear-resistant Nitron finish or natural stainless finish, light-weight alloy frame with integral accessory rail, and the Sig Sauer four-point safety system of decocking lever, patented automatic firing pin safety block, safety intercept notch, and trigger bar disconnector.
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:
This cartridge was developed by John Browning and was adopted by the United States Ordnance Department along with the Colt-Browning automatic pistol in 1911. It has also been made the official military handgun chambering by several other governments, notably Argentina, Mexico and Norway. The 45 Automatic is the most powerful military handgun cartridge in use today. This is a heavy and powerful sub-sonic round. Although its muzzle energy can exceed 400 ft-lbs, its velocity and bullet weight creates a steep trajectory curve that limits its effective range to self-defense distances.