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SIG Sauer SIGM400

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SIG Sauer SIGM400 series
Sig Sauer M400 series rifle
TypeSemi-automatic rifle
Carbine
Place of originUnited States
Service history
Used bySee Users
WarsWar in Iraq (2013–2017)
Islamic State insurgency in Iraq (2017–present)
Production history
Designed2000s
ManufacturerSIG Sauer
Produced2010–Present
Specifications
Mass7.6 pounds (3.4 kg)
Barrel length14.5–20 inches (37–51 cm) (5.56×45mm)
9–16 inches (23–41 cm) (.300 AAC)

Cartridge5.56×45mm NATO
.223 Remington
.300 AAC Blackout
ActionDirect gas impingement system, rotating bolt
Feed systemSTANAG magazines

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] Depending on the variant, it can be chambered for 5.56×45mm NATO or .300 AAC Blackout cartridges, and may have a fixed or telescoping stock.[3]

Design details

Operating mechanism

The SIGM400 is a semi-automatic firearm in either rifle as the SIGM400 Classic, SRP, Tread, Elite, Predator or 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 SIGM400 Predator is a rifle while the SIGPM400 Elite PSB is a pistol. 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) barrels threaded 1/2x28, or chambered for .300 AAC Blackout with 9-inch (23 cm) or 16-inch (41 cm) barrels which are threaded 5/8x24 for muzzle devices such as sound suppressors. There are California compliant ("featureless") models for both.[3] The .300 AAC Blackout model is tailored specifically for efficient use with suppressors. The Picatinny rail supports optical, electro optical, or iron sights. SIG Sauer also manufactures suitable suppressors.

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]

A map with users of the SIGM400 in blue

Users

See also

References

  1. ^ "SIGM400". SIG Sauer.
  2. ^ "SIG SAUER's M400 Predator". gunsmagazine.com. Retrieved 27 February 2017.
  3. ^ a b c d "SIGM400 Predator". sigsauer.com. Archived from the original on 28 February 2017. Retrieved 27 February 2017.
  4. ^ "Conheça os novos fuzis da Polícia Civil do Rio". O Globo. 8 July 2023. Archived from the original on 12 July 2023.
  5. ^ "ISOF Arms & Equipment Part 1 – Personal Equipment". Armament Research Services (ARES). 27 November 2016.
  6. ^ "Is This the Ultimate AR-15 Rifle of All Time?". 20 July 2019.
  7. ^ "ORD PABAC2-005-24 Carbine, 5.56mm Assault Rifle 15 Platform Acquisition Project of the Philippine Army".
  8. ^ https://armyrecognition.com/defense_news_december_2023_global_security_army_industry/philippines_army_to_enhance_accuracy_with_new_7.62mm_marksman_rifles.html [bare URL]
  9. ^ "Philadelphia SWAT Adopts SIG SAUER M400 Pro Rifles -". 3 January 2019.
  10. ^ "Detroit SWAT picks Sig Sauer M400 in rifle contract".