SIG Sauer M400 Enhanced Rifle 5.56x45, 16" Barrel Black or Tan #RM400-16B-ECP


THE SIGM400 SERIES ENHANCED RIFLE, is designed for use in law enforcement, military operations, as well as competitive shooting. The SIG M400 is a true AR platform tactical rifle with unparalleled accuracy. A 16” Nitride treated barrel provides superior corrosion resistance, and a 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability that users come to expect from SIG SAUER. FDE version is equiped with Magpul MOE forend, grip and collapsible stock. Black version is equiped with Magpul Moe forend and grip, and Ark Defense buttstock


  • Item Numbers: Black -  RM400-16B-ECP / FDE - RM400-16B-ECP-FDE
  • Action Semi-auto
  • Operating System Direct impingement
  • Caliber 5.56 X 45mm NATO
  • Overall Length 35.6 in
  • length w/Stock Collapsed 32.5 in
  • Overall Height 7.8 in
  • Trigger Weight 7.6 lbs
  • Barrel Length 16 in
  • Rifling Twist 1 in 7 in
  • Grooves 6
  • Weight w/out Mag 6.7 lbs
  • Mag Capacity 5 Rounds

*Black rifle comes with Ark Defense's SIG contracted buttstock, Specifications Subject to changes from SIG Sauer

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