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SIG Sauer SIGM400
Semi-automatic rifle From Wikipedia, the free encyclopedia
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The SIGM400 is a family of firearms manufactured by SIG Sauer.[1] The M400 is an air-cooled, direct impingement gas-operated, magazine-fed carbine that is based on the earlier AR-15 rifle.[2] It is chambered for either 5.56×45mm NATO or .300 AAC Blackout cartridges, and can have a fixed or telescoping stock.[3]
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Design details
Operating mechanism
The SIGM400 is a semi-automatic firearm offered as either a rifle as the SIGM400 Classic, SRP, Tread, Elite, or Predator; or as a pistol, as the Elite PSB, intended for law enforcement, military and civilian markets. It fires from a closed bolt and uses a direct impingement gas system.[3]
Features
The rifles are chambered for either 5.56×45mm NATO with 14.5-inch (37 cm), 16-inch (41 cm), 18-inch (46 cm), or 20-inch (51 cm) threaded barrels, or chambered for .300 AAC Blackout with 9-inch (23 cm) or 16-inch (41 cm) threaded barrels. There are California compliant ("featureless") models for both.[3] The .300 AAC Blackout model is tailored specifically for efficient use with suppressors, which SIG Sauer also manufactures.[citation needed]
The SIGPM400 Elite PSB pistol is chambered for 5.56×45mm NATO with an 11.5-inch (29 cm) barrel and is chambered for .300 AAC Blackout with a 9-inch (23 cm) barrel. Both use a Pistol Stabilizing Brace accessory.[3][needs update]
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Users
Brazil: Civil Police of Rio de Janeiro State[4]
Iraq: Iraqi Special Operations Forces[5]
Oman: Oman Military[6]
Philippines: Philippine Army used as a Designated Marksman Rifle[7][8]
United States: Philadelphia Police Department,[9] Detroit Police Department SWAT, Franklin County, Ohio Sheriff's Office[10]
See also
References
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