of 9mm, 9mm +P, .40 S&W, and .357 SIG are as follows: ; ; ; and . The slide on the P226 was redesigned in a similar fashion, and civilian sales of the P228 were discontinued in early 2005 due to declining sales and the advent of the P229 in 9mm. The P226 and P229 are both available with optional accessory rails and optional forged stainless steel frames. The P229 can be chambered in .22 LR, 9mm, .40 S&W or .357 SIG. Changing between .40 S&W and .357 SIG is as simple as switching out the barrel; both calibers use the same magazine. Conversion barrels also allow a P229 or P226 to change between a .40 S&W/.357 SIG to a 9mm caliber. The 9mm model (both railed and non-railed) can be converted to .22 LR, but in the past its receivers were not designed to provide the space needed for handling the larger rounds of .357 SIG and .40 S&W. As SIG Sauer has slowly begun adopting the E2-style grip system across the P229 model range in 2011—a move similar to what is also happening to the larger P226—they have also begun using the .357 SIG/.40 S&W spec frame dimensions for their factory 9mm P229s, presumably to streamline the number of variations in parts needed to be kept in inventory. Although the manufacturer has announced that older-configuration magazines will continue to operate in the new receiver configuration, SIG Sauer has nonetheless revised new P229 9mm factory magazines to a design that is specific to the resized magazine well of the newly reconfigured receiver/frame. As a consequence, the newer magazines are not back-compatible, due to their larger width. P224 The P224 is a subcompact variant of the series. It has a barrel length of and an unloaded weight of . It has a 12-round capacity when chambered in 9mm; it is also available in .357 SIG and .40 S&W. The P224 was introduced in 2012 as double-action only (DAO); it was reintroduced in 2013 as double action / single action (DA/SA) with a decocking lever. The P224 was discontinued in 2016. Users See also Joint Combat Pistol M9 pistol References Bibliography External links Official page P226 operator's manual P229 operator's manual The Arms Site review and history of the P226 SIG-Sauer P226 pistol (Switzerland) at Modern Firearms Pistol Procurement, Allegations on Army Selection of Beretta 9mm. as DOD Standard Sidearm—GAO report,