<Tr> <Th> Feed system </Th> <Td> 10 -, 12 -, 13 -, or 15 - round magazine (. 40 S&W, . 357 SIG); 10 -, 15 -, 17 -, 18 -, or 20 - round magazine (9 × 19mm Parabellum); 10 - round polymer magazine (Classic 22 only) </Td> </Tr> <Tr> <Th> Sights </Th> <Td> Iron sights </Td> </Tr> <P> The SIG Sauer P226 is a full - sized, service - type pistol made by SIG Sauer . It is chambered for the 9 × 19mm Parabellum, . 40 S&W, . 357 SIG, and . 22 Long Rifle . It is essentially the same basic design of the SIG Sauer P220, but developed to use higher capacity, double stack magazines in place of the single stack magazines of the P220 . The P226 itself has spawned further sub-variants; the P228 and P229 are both compact versions of the double stack P226 design . The SIG Sauer P226 and its variants are in service with numerous law enforcement and military organizations worldwide . </P> <P> Schweizerische Industrie Gesellschaft (SIG) is a Swiss company, now known as Swiss Arms . In 1975, SIG entered into an agreement with German gun manufacturer J.P. Sauer & Sohn to develop and market a new handgun which became the P220 . The P220 was the first SIG Sauer handgun sold in the USA . It was marketed initially by Browning as the Browning BDA . The SIG Sauer P220 is a refinement of the Petter - Browning design used in the SIG P210 . The locked breech design is very different and was pioneered by SIG Sauer . See also The first SIG Sauer Handgun . </P>

What is the difference between sig sauer p226 and p229