Sig Sauer M400 5.56x45 30rd 16" Black M4

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Sig Sauer M400 Semi-automatic AR 223 Rem 556NATO 16" Black Synthetic 30Rd RM400-16B-C
Sale Restrictions

This item can only be shipped to a valid FFL dealer.

**This can not be shipped to CA, CO*, DC, IL*, MA, NJ, NY and HI or any other restricted states.

ALL NFA Rules Apply per BATF. and All local laws apply.
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Sig Sauer M400 5.56x45 30rd 16" Black M4

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THE SIGM400 SERIES TACTICAL RIFLE, designed for use in law enforcement, military operations, or the sporting field as well as competitive shooting. The SIGM400 is a true AR platform tactical rifle. Provides unparalleled accuracy, with a 16" Nitride treated barrel that provides maximum durability and corrosion resistance. A 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability.


  • Direct impingement gas operating system with rotating locking bolt
  • 5.56 x 45 mm NATO Nitride treated barrel
  • Accepts most M16 type magazines
  • A2 Type flash suppressor
  • "F" marked fixed front sight

Specifications are subject to change.

Manufacturer Sig Sauer
Barrel Length 16
Barrel Twist No
Barrel Lined No
Capacity 30
Caliber .223 / 5.56
Model M400
Grip/Stock Synthetic
Action Semi-automatic
Gas System Direct Imp
Upper Reciever Style No
Handguard Style No
Sights No
Front Sights No
Type AR
Finish / Color Black
UPC Code 798681432660
Product Weight (Lbs) 9.81
Manufacture Part# RM400-16B-C
Hand No

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