The SIG P220 is a semi-automatic pistol designed in Switzerland by Swiss Arms AG (formerly SIG Arms AG, distributed in United States by SIG Sauer). It is manufactured in Eckernförde, Germany, by J.P. Sauer und Sohn GmbH. It uses the Browning linkless cam short recoil action of self-loading with a double action trigger mechanism. The P220 was the basis of what is now a large family, including the P225, P226, P228 and P229 pistols. An outstandingly successful design, the P220 and variations are in service in the armed forces and police of many countries.