SIG Sauer eventually founded SIGARMS, Inc. Interarms took over importing when the pistol was introduced for civilian sales. military XM9 trials, the P226 was imported by Saco Defense. The Navy SEALs, however, later chose to adopt the P226 as the P226 MK25 with special corrosion protection. The P226 cost less per pistol than the 92F, but SIG's package price with magazines and spare parts was higher than Beretta's.

According to a GAO report, Beretta was awarded the M9 contract for the 92F due to a lower total package price. Only the Beretta 92SBF and the SIG P226 satisfactorily completed the trials. The P226 was designed for entry into the XM9 Service Pistol Trials (see also Joint Service Small Arms Program) that were held by the US Army in 1984 on behalf of the US armed forces to find a replacement for the M1911A1 and 24 other makes of handgun in US military service.

The locked breech design is very different and was pioneered by SIG Sauer. The SIG Sauer P220 is a refinement of the Petter-Browning design used in the SIG P210. It was marketed initially by Browning as the Browning BDA. The P220 was the first SIG Sauer handgun sold in the US. Sauer & Sohn to develop and market a new handgun which became the P220. In 1975, SIG entered into an agreement with German gun manufacturer J.P. Schweizerische Industrie Gesellschaft ( SIG) is a Swiss company, now known as Swiss Arms. The SIG Sauer P226 and its variants are in service with numerous law enforcement and military organizations worldwide. The P226 itself has spawned further sub-variants the P228 and P229 are both compact versions of the double stack P226 design, while the P224 is a subcompact variant. It has essentially the same basic design as the SIG Sauer P220, but is developed to use higher capacity, double stack magazines in place of the single stack magazines of the P220. This model is sold with a choice of four chambers to choose from: the 9×19mm Parabellum. The SIG Sauer P226 is a full-sized, service pistol made by SIG Sauer. Mechanically locked, recoil operated ( DA/SA, DAK (double action Kellerman), or DAO), or SAOġ0-, 12-, 13-, or 15-round magazine (.40 S&W. JSTOR ( December 2016) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.

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