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Sig Sauer M400 TREAD Snakebite SE 5.56 NATO 16" 1:7" Bbl 30rd Cerakote Elite FDE Rifle w/Hybrid Comp/Flash Hider RM400-16B-TRD-SB-SE


October 25th, 2023 through December 25th, 2023, purchase any* new Sig Sauer Firearm and Optic and receive up to $200 in credit to SigSauer.com!

Click Here to Submit Proof of Purchase

*This offer excludes the P322, ROMEOZERO-ELITE micro red dot, and all SIG AIR Products. Promotion fulfilled by Sig Sauer. Excludes used and like new products.

This item ships for $13.95

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FFL Requirements
This item can only be shipped to a Licensed Federal Firearms Dealer. Please see our Shipping Policy to review firearms shipping requirements.
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Due to government regulations and/or manufacturer stipulations we are unable to export this item outside of the United States. Please see our Export Policy.


New for 2021, the Sig Sauer M400 Tread Snakebite SE shares all the same features of the standard Snakebite, but comes equipped with several new upgrades. New features include a unique flashhider/compensator which greatly reduces visible muzzle flash and mitigates barrel rise. The Snakebite SE also includes a new Matchlite two-stage trigger with a light pull for enhanced accuracy. In addition to the upgrades, the Snakebite SE features a full length handguard with lightening cuts for reduced weight and heat ventilation. This handguard also has multiple M-LOK attachment points for the installation of lights lasers and other accessories, and a flattop picatinny rail allows an optic of choice to be mounted.

Features of the M400 Tread Snakebite:

  • Flashhider/compensator combo
  • Matchlite two stage trigger
  • Full length handguard with lightning cuts and M-LOK attachment points
  • Compatible with all TREAD accessories


  • Caliber:5.56 NATO
  • Weight:7 lbs
  • Rifle Overall Length:35.5 inches
  • Action:Semiautomatic - Direct impingement
  • Trigger:Matchlite 2-stage trigger
  • Safety:Ambidextrous
  • Rifle Barrel Length:16 inches
  • Rifle Barrel Twist:1:7"
  • Rifle Stock:6-position SL-K
  • Scope Mount:Picatinny rail
  • Iron Sights No
  • Caliber or Gauge:5.56 x 45mm NATO
  • HandednessAmbidextrous
  • Item ConditionNew
  • Product TypeRifles
  • UPC798681656363
  • MPNRM400-16B-TRD-SB-SE

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