Sig Sauer M400 Tread

Published on January 14, 2019
Duration: 24:54

The Sig Sauer M400 Tread is presented as a budget-friendly AR-15 option, featuring ambidextrous controls and a 16-inch, 1:8 twist stainless steel barrel. While passing reliability tests, the handguard's lack of cooling and a standard charging handle were noted as drawbacks. The rifle offers solid performance for its price point, though some upgrades like the handguard are recommended.

Quick Summary

The Sig Sauer M400 Tread is a budget-friendly AR-15 featuring ambidextrous controls and a 16-inch, 1:8 twist barrel. It passed reliability tests with 100% function over 450 rounds, though its handguard can overheat quickly. It's a solid option for those seeking an affordable Sig Sauer rifle.

Chapters

  1. 00:00Intro: Sig M400 Tread Budget AR-15
  2. 01:22Optics & Initial Reliability Test
  3. 02:15Controls & Ergonomics: Ambi Features?
  4. 03:51Barrel & Handguard Specs: Heat Issues
  5. 05:34Range Testing: Reliability & Ammo
  6. 07:46Unboxing: What's Included?
  7. 09:20Zeroing the Optic & Accuracy
  8. 11:16Final Thoughts & Headspace Check

Frequently Asked Questions

What is the Sig Sauer M400 Tread?

The Sig Sauer M400 Tread is Sig's offering in the sub-$1,000 AR-15 market. It features a 16-inch, 1:8 twist stainless steel barrel, direct impingement gas system, and ambidextrous controls, aiming to provide a budget-friendly yet reliable platform.

How reliable is the Sig M400 Tread?

During testing, the M400 Tread demonstrated 100% reliability over 450 rounds, passing both hot and cold headspace tests. It performed well with various ammunition types, suggesting good fundamental reliability for its price point.

What are the key features of the M400 Tread's ergonomics?

The rifle includes ambidextrous magazine releases and fire controls, along with an extended bolt release. However, the charging handle is a standard T-handle with only one side offering a release, which the reviewer noted as not truly ambidextrous.

Are there any drawbacks to the Sig M400 Tread's design?

A notable drawback is the M-LOK handguard, which heats up quickly during rapid fire due to a lack of rear cooling holes. The included accessories are basic, and iron sights are not provided.

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