Upgrading My MCX Spear LT

Published on March 29, 2024
Duration: 5:15

This guide details the process of upgrading a Sig Sauer MCX Spear LT, covering the installation of a B5 Systems Enhanced SOPMOD stock, Magpul MOE-K2+ pistol grip, BCM vertical foregrip, and Slate Black Industries rail covers. It also includes the replacement of the muzzle device with a Surefire Warcomp and the addition of an Arisaka Offset Optic Mount with a Trijicon RMR. The video emphasizes a methodical approach to ensure proper fitment and function.

Quick Summary

This guide details upgrading a Sig Sauer MCX Spear LT by installing a B5 Systems Enhanced SOPMOD stock, Magpul MOE-K2+ pistol grip, BCM vertical foregrip, and Slate Black Industries rail covers. It also covers replacing the muzzle device with a Surefire Warcomp and adding an Arisaka Offset Optic Mount with a Trijicon RMR, emphasizing a methodical installation process.

Chapters

  1. 00:00Unboxing and Parts Overview
  2. 01:07Stock Installation
  3. 01:49Pistol Grip and Foregrip Installation
  4. 02:35Rail Covers and Handguard Setup
  5. 02:56Optic Swap and Offset Mount
  6. 04:06Muzzle Device Replacement
  7. 04:35Final Reveal and Showcase

Frequently Asked Questions

What are the key upgrades performed on the Sig Sauer MCX Spear LT in this video?

The Sig Sauer MCX Spear LT received several upgrades including a B5 Systems Enhanced SOPMOD stock, Magpul MOE-K2+ pistol grip, BCM Mod 3 Vertical Grip, Slate Black Industries rail covers, a Surefire Warcomp muzzle device, and an Arisaka Offset Optic Mount fitted with a Trijicon RMR.

How is the Surefire Warcomp installed on the MCX Spear LT?

The factory muzzle device is removed, and the Surefire Warcomp is installed using Loctite Red 271 thread locker. Proper timing of the muzzle device is crucial for its function and suppressor compatibility.

What accessories are used for improving ergonomics and control on the MCX Spear LT?

Ergonomics are enhanced with the installation of a Magpul MOE-K2+ pistol grip and a BCM Mod 3 Vertical Grip mounted to the M-LOK handguard. Slate Black Industries Slate Grips are also added for improved texture and heat protection.

What is the purpose of the Arisaka Offset Optic Mount and Trijicon RMR combination?

The Arisaka Offset Optic Mount, fitted with a Trijicon RMR, provides a secondary, close-quarters aiming solution. This allows for rapid target acquisition when transitioning from a primary optic like an ACOG.

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