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Implementation
The SIG-Sauer P229 in .357 SIG is currently the standard issue firearm carried by agents of the United States Secret Service, Virginia State Police, and various other local and state departments. In most cases, it has replaced 10 mm/.40 S&W and 9 mm "Para" loads. In 1995, the Texas Department of Public Safety became the first government agency to implement the .357 SIG
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Platforms
Firearms being or having been produced for the 357 SIG cartridge number many. Here are a few in production as of the year 2005:
Glock 31 (Full-Size)
Glock 32 (Compact)
Glock 33 (Sub-Compact)
SIG P226/P226R DAK (Full-Size)
SIG P229 (Compact)
SIG P239 (Sub-Compact)
SIG SP2340 (Polymer Compact)
SIG SP2022 (Polymer Compact)
Springfield Armory XD 4 in (102 mm) "Service" (Compact)
Springfield Armory XD 5 in (127 mm) "Tactical" (Full-Size)
Heckler & Koch USP Compact (Compact)
Heckler & Koch P2000 (Compact)
Heckler & Koch P2000SK (Sub-Compact)
STEYR M357 A-1 (Full-Size, Polymer with reinforced Steel frame)
Smith & Wesson M&P (Full-Size)
Walther P99 (Full-Size) (note: Walther never produced the P99 in the 357 sig. However, via a replacement barrel, the 40 cal version could be easily converted)
Kel-tec P-40 (with aftermarket barrel)
Vector Arms HK style carbines, pistols, and rifles (referred to as SP98 and SP98k in its pistol variant)
The manufacture of carbine/bullpup type rifles in this caliber is an often-discussed concept that has yet to be addressed by major manufacturers. To date, the only manufacturer offering .357SIG carbines and rifles is Vector Arms, with its selection of HK style weapons.