The SIG Sauer M400 Sdi is a semi-auto ar pistol chambered in 5.56 NATO/.223 Rem. It has a 11.5″ threaded barrel (1/2″x28 tpi) and a capacity of 30+1 rounds.
Specifications
- Brand: SIG Sauer
- Model: M400 Sdi
- Manufacturer Part #: PM400-SDI-11B-BLK
- UPC: 798681698967
- Caliber: 5.56 NATO/.223 Rem
- Action: Semi-Auto
- Barrel Length: 11.5″
- Twist Rate: 1:7″
- Thread Pitch: 1/2″x28 tpi
- Capacity: 30+1 Rounds
- Magazines Included: 1 30 rd. Magazine
- Overall Length: 30.2″
- Sights: Optic Ready
- Safety: Thumb
- 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.







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