| SIG Sauer SIGM400 series | |
|---|---|
 Sig Sauer M400 series rifle | |
| Type | Semi-automatic rifle Carbine |
| Place of origin | United States |
| Service history | |
| In service | 2010–Present |
| Used by | See Users |
| Wars | War in Iraq (2013–2017) Islamic State insurgency in Iraq (2017–present) |
| Production history | |
| Designed | 2000s |
| Manufacturer | SIG Sauer |
| Produced | 2010–Present |
| Specifications | |
| Mass | 7.6 pounds (3.4 kg) |
| Barrel length | 14.5–20 inches (37–51 cm) (5.56×45mm) 9–16 inches (23–41 cm) (.300 AAC) |
| Cartridge | 5.56×45mm NATO .223 Remington .300 AAC Blackout |
| Action | Direct gas impingement system, rotating bolt |
| Feed system | STANAG 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]
- ^ "SIGM400". SIG Sauer.
- ^ "SIG SAUER's M400 Predator". gunsmagazine.com. Retrieved 27 February 2017.
- ^ "SIGM400 Predator". sigsauer.com. Archived from the original on 28 February 2017. Retrieved 27 February 2017.