*NEW* SIG SAUER M400-SDI XSeries | Guns & Gear

Published on August 9, 2023
Duration: 4:20

This video demonstrates the benefits of ambidextrous controls on the SIG M400-SDI XSeries rifle through a reload drill. The presenter, Phil, showcases how utilizing the full ambi bolt catch and magazine release can potentially improve reload times and shooter efficiency, especially for left-handed shooters or those who switch shoulders. The X-Series upgrades, including the trigger and handguard, are also highlighted.

Quick Summary

The SIG M400-SDI XSeries rifle features a direct impingement gas system and X-Series upgrades, including a skeletonized two-stage trigger and ambidextrous controls. It also includes a hybrid flash hider/muzzle brake for recoil and flash reduction, and a trim handguard with a full rail for accessory mounting.

Chapters

  1. 00:06Introducing the SIG M400-SDI XSeries
  2. 00:11What does SDI Stand For?
  3. 00:15X-Series Upgrades
  4. 00:25Handguard and Rail System
  5. 00:30Available Sizes and Options
  6. 00:39Improved X-Series Trigger
  7. 00:46Ambidextrous Controls Explained
  8. 00:53Hybrid Flash Hider/Muzzle Brake
  9. 01:02Why Ambi Controls Matter
  10. 01:14Range Demonstration Setup
  11. 01:27Left-Handed Shooter Perspective
  12. 01:39Reload Drill Demonstration
  13. 02:03Standard Reload Time
  14. 02:18Reload Drill with Ambi Controls
  15. 03:09Ambi Reload Time
  16. 03:36Comparing Reload Times
  17. 03:42Benefits of Ambi Controls
  18. 03:52Final Thoughts on M400-SDI XSeries
  19. 04:11More Gun Talk Content

Frequently Asked Questions

What does SDI stand for on the SIG M400-SDI XSeries rifle?

SDI on the SIG M400-SDI XSeries rifle stands for 'Sig Direct Impingement.' This refers to the gas system used in the rifle's operation, distinguishing it from other AR-15 operating systems.

What are the key upgrades found on the X-Series version of the SIG M400-SDI?

The X-Series version of the SIG M400-SDI features upgraded components such as a skeletonized X-Series two-stage trigger, a trim handguard with a full rail, and ambidextrous controls for enhanced ergonomics and performance.

Does the SIG M400-SDI XSeries come with a special muzzle device?

Yes, the SIG M400-SDI XSeries is equipped with a hybrid flash hider and muzzle brake. This dual-function device is designed to simultaneously reduce both muzzle flash and recoil, improving the shooting experience.

How do ambidextrous controls benefit a shooter on the SIG M400-SDI XSeries?

Ambidextrous controls, like the bolt catch and magazine release, offer greater flexibility and efficiency for shooters. They can potentially speed up reloads and manipulations, especially for left-handed shooters or those who may need to switch shoulders during dynamic shooting scenarios.

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