The SIG Sauer Saur M400 SDI X-Series is a semi-auto AR-style rifle chambered in 5.56 NATO/.223 Rem. It has a 16″ threaded barrel (1/2″-28 tpi) and a capacity of 30+1 rounds.

The SIG SAUER M400 SDI XSERIES packs a rich set of features and upgrades into the M400 platform delivering an advanced performance rifle right out of the box. The M400 XSERIES lower features fully ambidextrous controls including bolt catch & release selector switch charging handle and mag release. Also unique to the XSERIES is a precision machined lightning cut upper and lower with a handguard clamp system designed to minimize deflection when using mounted accessories. Other features include a hybrid flash hider/compensator 2-Stage Matchlite Trigger and Magpul SL Telescoping Stock.

Specifications

• Brand: SIG Sauer
• Model: Saur M400 SDI X-Series
• Manufacturer Part #: RM400-SDI-16B-P
• UPC: 798681664634
• Caliber: 5.56 NATO/.223 Rem
• Action: Semi-Auto
• Barrel Length: 16″
• Twist Rate: 1-in-7″
• Thread Pitch: 1/2″-28 tpi
• Capacity: 30+1 Rounds
• Magazines Included: 1 30 rd.
• Overall Length: 46.5″
• Safety: Ambi Safety Control
• Finish: Black FNC

Not available to ship to: CA, RI, WA.

Ships to a licensed FFL dealer for transfer. The buyer must pass the required background check and meet all federal, state and local laws.