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Sig Sauer M400 Tread Snakebite 5.56mm NATO Optics Ready AR-15 Rifle

  • Item Number: RM400-16B-TRD-SB
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  • View More Items by Sig Sauer
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  • Condition: NEW
Sig Sauer M400 Tread Snakebite 5.56mm NATO Optics Ready AR-15 Rifle
$999.99 $1,379.99

Temporarily Out of Stock

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Product Description

What's in the Box

  • M400 Tread 5.56mm NATO AR-15
  • (1) 30 Round Magazine
  • Owner's Manual

The Sig Sauer M400 TREAD is an optics ready, aluminum frame rifle. TREAD features a 16” stainless steel barrel with a free-floating M-LOK handguard, a single-stage polished/hard-coat trigger, ambidextrous controls, a Magpul™ SL-K 6 position telescoping stock, a mid-length gas system, and is available in 5.56 NATO.

Firearm Features

  • 6-Position SL-K Stock
  • Stainless Steel Barrel
  • Single Stage Polished/Hard Coat Trigger
  • Alloy Forend
  • Cerakote Finished Reciever
  • M-LOK Accessory Rail
  • Ambidextrous Controls

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: M400 Tread
  • Caliber: 5.56 NATO
  • Barrel Length: 16"
  • Twist Rate: 1:8"
  • Overall Length: 30.8"
  • Finish: Flat Dark Earth
  • Grips: Polymer
  • Magazine Capacity: 30+1
  • Trigger: 2-Stage Match Trigger
  • Stock: 6-Position SL-K

Customer Comments & Questions

Customer Reviews

Write a review
(4 out of 5) Sig Sauer produces top-quality rifles, and the M400 Tread is no exception...
by Rob from New Brunswick, NJ on February 9, 2022

I love this rifle! It looks and feels great, and is an absolute pleasure to shoot at the range. It is relatively lightweight with very little recoil. The target did not have a chance as I was able to group the shots within 1/2 inch at 30 yards using my Sig Romeo5. This is one fun gun. The only con I found is that the handguard gets extremely hot after shooting a hundred rounds. I received third-degree burns on my finger. I spoke to an experienced gunsmith and he advised this is common with Sig Sauer M400 rifles as the handguard is very thin, in conjunction with the Hornady ammunition used runs very hot. His suggestion was to wear gloves and buy a vertical grip... which I recently purchased. Regardless of this issue, it is a great, fun, and easy-to-use rifle that will bring years of enjoyment.

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