Manufacturer: Sig Sauer
Model/Series: M400 SDI XSeries
Action: Semi-Auto
Caliber/Gauge: .223 Rem | 5.56 NATO
Finish: Moss Green
Stock/Grips: 6-Position Magpul MOE-SL Black
Barrel Length: 16"
Twist Rate: 1:7"
Overall Length: 36.5"
Capacity: 30
Sights: No Sights
Thread Pattern: 1/2x28
Weight: 7 lbs
Features: Aluminum MLOK Handguard | Sig Flash Hider Compensator | Sig 2-Stage Matchlite Duo

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.

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).