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Sig Sauer M400 SDI XSeries Moss Green 5.56 / .223 Rem 16" Barrel 30-Rounds

The Sig Sauer M400 SDI XSeries is a semi-automatic rifle chambered in .223 Rem / 5.56 NATO, designed for precision, reliability, and adaptability. Featuring a 16-inch barrel with a 1-in-7" twist rate, this rifle ensures consistent accuracy. The Moss Green finish provides a unique, rugged appearance, while the 6-position Magpul MOE-SL stock offers superior comfort and adjustability.
$1,599.99
In stock
SKU
GAG_RM400SDI16BMSGRN

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More Information

Sig Sauer M400 SDI XSeries Features

The M400 SDI XSeries is built with an aluminum M-LOK handguard, allowing for easy attachment of accessories while maintaining a lightweight design. The Sig 2-Stage Matchlite Duo trigger ensures a crisp, predictable break, improving precision for tactical, defensive, and sport shooting applications.

This rifle is optics-ready, featuring a flat-top upper receiver for customizable sighting options. The threaded barrel (1/2x28) allows for suppressor or muzzle device attachment, while the Sig Flash Hider Compensator helps reduce recoil and muzzle rise. The ambidextrous safety makes it versatile for both right- and left-handed shooters.

Sig Sauer M400 SDI XSeries Specifications

  • Caliber: .223 Rem | 5.56 NATO
  • Action: Semi-Auto
  • Barrel Length: 16"
  • Overall Length: 36.5"
  • Twist Rate: 1-in-7"
  • Capacity: 30+1 Rounds
  • Magazine: 1 x 30-Round Polymer Mag
  • Finish: Moss Green
  • Stock: Collapsible / Folding (6-Position Magpul MOE-SL, Black)
  • Sights: None (Optics Ready)
  • Muzzle Device: Sig Flash Hider Compensator
  • Thread Pattern: 1/2x28
  • Safety: Ambidextrous
  • Handguard: Aluminum M-LOK
  • Trigger: Sig 2-Stage Matchlite Duo
  • Weight: 7 lbs.
More Information
Barrel Length 16
Caliber 5.56
Capacity 30
Condition New in Box
Finish Per Color Moss Green
Manufacturer Sig Sauer
Manufacturer Part Number RM400-SDI-16B-MSGRN
Model M400 SDI XSeries
Type Modern Sporting Rifles
UPC 798681701216

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV

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