Sig Sauer MCX Spear Review: Best New Battle Rifle?

Published on April 13, 2023
Duration: 11:16

The Sig Sauer MCX Spear, the civilian version of the U.S. Military's M7, is a versatile and accurate battle rifle chambered in .308 Winchester. It features a unique side charging handle, an adjustable gas system, and demonstrated sub-MOA accuracy with Federal Premium 168gr ammunition. While reliable, some gas blowback was noted when suppressed in a prone position.

Quick Summary

The Sig Sauer MCX Spear, the civilian version of the U.S. Military's M7, is a .308 battle rifle featuring a unique side charging handle and an adjustable gas system. It achieved sub-MOA accuracy with Federal Premium 168gr ammo, though some gas blowback was noted when suppressed.

Chapters

  1. 00:00Introduction: Sig Sauer MCX Spear & M7
  2. 00:53Ergonomics: Charging Handle & Stock
  3. 02:38Grip, Rail, and Adjustable Gas System
  4. 03:26Trigger Pull and Reset
  5. 04:16Accuracy Testing: .308 Loads
  6. 07:18Suppressed Performance & Gas Blowback
  7. 09:17Final Thoughts & Reliability

Frequently Asked Questions

What caliber is the Sig Sauer MCX Spear?

The Sig Sauer MCX Spear is chambered in .308 Winchester, also known as 7.62x51 NATO. This makes it a traditional battle rifle caliber suitable for various applications.

What makes the Sig Sauer MCX Spear's charging handle unique?

It features both a traditional rear charging handle and an innovative side charging handle. This side handle also functions as a bolt lock and release, offering enhanced operational flexibility.

How accurate is the Sig Sauer MCX Spear?

During testing, the MCX Spear demonstrated sub-MOA accuracy with Federal Premium 168gr ammunition at 100 yards. Other loads like GGG M80 achieved around 2 MOA.

What are the key features of the Sig Sauer MCX Spear's gas system?

The rifle is equipped with a two-setting adjustable gas system, allowing users to switch between 'normal' and 'suppressed' modes. This helps manage gas pressure and recoil.

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