SIG Sauer M400 TREAD V2 AR-15 rifle chambered in 5.56 NATO with 16 inch barrel and M-LOK handguard, in store image

SIG Sauer M400 TREAD V2 AR-15 Rifle 5.56 NATO 16" Optics Ready

Sig Sauer
SKU:
101-30312
|
UPC:
798681688005
$1,099.99
Current Stock:
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Description

Quick Overview

The SIG Sauer M400 TREAD V2 is a modern 5.56 NATO AR-15 rifle built for shooters seeking reliability, accuracy, and customization in a lightweight platform. Featuring a 16-inch stainless steel barrel, mid-length direct impingement gas system, free-floating M-LOK handguard, and SIG's Matchlite Duo two-stage trigger, the M400 TREAD V2 delivers enhanced performance for range use, home defense, training, and recreational shooting.

Designed as an optics-ready platform, the M400 TREAD V2 combines premium features with proven AR-15 compatibility, giving shooters a versatile rifle that performs right out of the box while remaining easy to upgrade and personalize.

Key Benefits

  • 16" Stainless Steel Barrel: Excellent durability and accuracy potential
  • Mid-Length Gas System: Smooth recoil impulse and reliable cycling
  • SIG Matchlite Duo Trigger: Crisp two-stage trigger for improved precision
  • Free-Float M-LOK Handguard: Allows accessory mounting without affecting barrel harmonics
  • Ambidextrous Controls: Enhanced usability for right- and left-handed shooters
  • Optics Ready Platform: Configure with your preferred red dot, LPVO, or magnified optic

What's Included

  • SIG Sauer M400 TREAD V2 Rifle
  • 30-Round Polymer Magazine
  • SIG 3-Prong Flash Hider
  • User Documentation

Best For

  • Home defense
  • Range shooting and training
  • Tactical applications
  • General-purpose AR-15 use

Enhanced Barrel Performance

The M400 TREAD V2 features a 16-inch stainless steel barrel with a 1:8 twist rate, making it well-suited for a wide range of popular 5.56 NATO and .223 Remington ammunition. The threaded muzzle includes a SIG 3-prong flash hider to help reduce visible muzzle flash.

Matchlite Duo Two-Stage Trigger

SIG Sauer equips the M400 TREAD V2 with its Matchlite Duo two-stage trigger, providing a clean and predictable break that enhances control and precision compared to standard mil-spec triggers.

Free-Floating M-LOK Handguard

The TREAD Enhanced aluminum handguard features M-LOK attachment slots for lights, lasers, grips, and other accessories while maintaining a free-floating barrel design for improved accuracy potential.

Ambidextrous Rifle Controls

Fully ambidextrous controls make the rifle easier to operate from either shoulder and improve overall handling for a wider range of shooters.

Magpul Furniture

The included Magpul SL-K six-position adjustable stock offers a compact profile, comfortable cheek weld, and flexible length-of-pull adjustment to fit various shooting positions and body types.

Product Specifications

Brand SIG Sauer
Model M400 TREAD V2
Platform AR-15
Caliber 5.56 NATO
Action Semi-Automatic
Barrel Length 16"
Barrel Material Stainless Steel
Twist Rate 1:8
Gas System Mid-Length Direct Impingement
Trigger SIG Matchlite Duo Two-Stage
Handguard TREAD Enhanced Aluminum M-LOK
Stock Magpul SL-K 6-Position Adjustable
Muzzle Device SIG 3-Prong Flash Hider
Thread Pattern 1/2x28
Controls Ambidextrous
Magazine Included 1 x 30-Round Polymer Magazine
Overall Length 32.5" - 35.8"
Weight 6.5 lbs
Finish Black Anodized