SIG SAUER

SIG Sauer M400 TREAD, Semi-auto, 5.56mm, 16" Barrel, 30+1 Rounds

SIG SAUER

SIG Sauer M400 TREAD, Semi-auto, 5.56mm, 16" Barrel, 30+1 Rounds

SIG SAUER logo
The SIG Sauer M400 TREAD takes the trusted AR platform and levels it up with enhanced ergonomics, accuracy, and versatility. Featuring a stainless steel barrel, free-floating M-LOK handguard, and SIG’s crisp Matchlite Duo trigger, this rifle is built for performance. Whether for range, duty, or defense, the M400 TREAD delivers uncompromising capability in a lightweight package.
Features & Benefits
Features and Benefits
  • Chambered in 5.56 NATO
  • 16" stainless steel barrel with 1:8 twist
  • Mid-length direct impingement gas system
  • 1/2x28 TPI threaded muzzle with SIG 3-prong flash hider
  • Free-floating TREAD-enhanced M-LOK handguard
  • Optics ready flat-top upper
  • SIG Matchlite Duo 2-stage flat blade trigger
  • Ambidextrous safety selector and mag release
  • Reduced-angle pistol grip
  • 6-position Magpul SL-K telescoping stock
  • Integrated QD sling mount
  • Includes (1) 30-round polymer AR-15 magazine

Key Specifications

  • Item Number: 748110
  • Caliber: 5.56mm
  • Action: Semi-automatic
  • Capacity: 30+1
  • Barrel length: 16"
  • Frame: Hard coat anodized aluminum
  • Sights: Optics ready
  • Safety: Ambidextrous manual
  • Overall length: 35.8"
  • Overall width: 2.6"
  • Overall height: 7.1"
  • Overall weight: 6.5 lbs
  • Mfg. Number: SIGGRM40016BTRDV2