Sig Sauer MCX Spear Review: Best New Battle Rifle?

Published on April 13, 2023
Duration: 11:16

This review of the Sig Sauer MCX Spear, presented by Sean of Pew Pew Tactical, offers an in-depth look at its features, ergonomics, and performance. The rifle, a civilian variant of the M7, excels in accuracy, achieving sub-MOA groups with specific ammunition. The review highlights its adjustable gas system, ambidextrous controls, and effective trigger, while also noting potential gas blowback when suppressed.

Quick Summary

The Sig Sauer MCX Spear, a civilian version of the U.S. Military's M7, is a highly accurate battle rifle chambered in .308 Winchester. It features a short-stroke gas piston, an adjustable gas system for suppressed fire, and excellent ergonomics including a folding stock and ambidextrous charging handle. Accuracy testing demonstrated sub-MOA potential with specific ammunition.

Chapters

  1. 00:00Introduction to the MCX Spear
  2. 00:53Ergonomics and Features
  3. 02:38Grip, Rail, and Gas System
  4. 03:26Trigger Assessment
  5. 04:16Accuracy Testing
  6. 07:18Suppressed Performance
  7. 09:17Final Thoughts and Reliability

Frequently Asked Questions

What is the Sig Sauer MCX Spear?

The Sig Sauer MCX Spear is a modern battle rifle, presented as the civilian variant of the U.S. Military's M7 rifle. It is chambered in .308 Winchester (7.62x51 NATO) and features a short-stroke gas piston system.

How accurate is the Sig Sauer MCX Spear?

Accuracy testing at 100 yards showed impressive results, with the rifle achieving sub-MOA groups using Federal Premium 168gr ammunition. Other tested loads like GGG NATO M80 yielded around 2 MOA.

What are the key ergonomic features of the MCX Spear?

It includes a Magpul MOE buttstock with adjustable length of pull and a folding mechanism for compactness. The rifle also features both a traditional rear charging handle and a side charging handle that doubles as a bolt lock/release.

How does the adjustable gas system on the MCX Spear work?

The gas system offers two settings: 'normal' for standard operation and 'suppressed' for use with a silencer. Adjusting to the suppressed setting helps manage cycling and reduce gas blowback.

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